IV. Of this, 2,100 J is indigestible and is eliminated as feces, 800 J are used in cellular respiration, and 100 J are used for growth and reproduction. C) protists. Some chemical energy is not converted to new biomass as energy is transferred between trophic levels. Some of the energy is reflected, and some is absorbed by the Earth's surface. You discover a nucleated, unicellular organism that is photosynthetic but can also eat other organisms. chemosynthetic bacteria. Algae at the beginning of a food chain would be considered A. heterotrophs. (a) Bacteria (b) Plantae (c) Eukarya (d) Archaea. The banks of streams and rivers, for example, provide some of the food sources to support the streams food chain; land organisms also consume water organisms. Along with decomposers, they make up the base of a food web and together their populations number more than any other part of the web. . Fungi (like mushrooms) are decomposers that decompose organic matter and consume that as their source of energy. fossilized plant and animal remains (coal, oil, and natural gas) export in ecosystems? If you wanted to investigate this phenomenon, one reasonable approach would be to ________. The genes may be on different chromosomes. C) typically 10 times higher in an uncut watershed A) nitrogen in the atmosphere A Venus flytrap devouring an insect to obtain nitrogen functions as . Food webs are typically arranged into trophic levels with: a. primary producers at the bottom, herbivores in the middle, and carnivores at the top. C) ones that use nitrogen-containing compounds as an electron acceptor. A. Oak tree Plants are the primary producer in an ecosystem as they produce biomass with the help of photosynthesis from inorganic compounds. Aquatic primary producers include plants, algae and bacteria. 20) Use the following figure to answer the question. D) 3C E) Australia, In the accompanying figure, which of these countries has the highest total CO2 emissions? If a field contains approximately 1,000 kilocalories of energy in grass, which is eaten by crickets, which are eaten by birds, then approximately how many kilocalories of energy could be in the birds that live in this field? Protista 5. (a) Fungi (b) Plantae (c) Bacteria (d) Protista. Amount of energy available to primary consumers Respond to the following statements Respond to the following statements with reference to the five trophic categories listed below. 62) Which of these ecosystems has the lowest net primary production per square meter? Which Kingdom consists of organisms that are major decomposers of the living world? D) usually greater than production efficiencies They live in both aquatic and terrestrial ecosystems and produce carbohydrates necessary for those higher up in the food chain to survive. C) reduction of nitrogen available to terrestrial ecosystems E) only I, II, III, and IV, Which of the following locations are large reservoirs for carbon for the carbon cycle? E) 0C, The shift in the peak of caterpillar season is most likely due to ________. Which of these ecosystems has the highest net primary productivity per square meter annually? A) industrial nitrogen fixation C) Japan D) 3C A) recycle chemical elements directly back to primary consumers Which of the following consume other living organisms? Detritus can be consumed by which of the following primary decomposers? 42) Use the following figure to answer the question. d. Sheep can be cloned by fusing a differentiated adult cell with an enucleated egg. Interpreting Diagrams Which diagrams represent a single element? A. First-order heterotrophs B. Third-order heterotrophs C. Producers D. None of the Above, What is another term for autotroph? III. Animals, fungi, most protists, and bacteria are: a. autotrophs b. producers c. heterotrophs d. multicellular, Which of the following is not a kingdom? Primary Purpose: Lead the producer and senior leader recruiting strategy in an ongoing effort to discover and acquire top-tier talent. Labeling a carnivore as a heterotroph would be correct. C) only III High-energy solar radiation enters the atmosphere. Primary producers are consumed by primary consumers (generally herbivores), which are then consumed by secondary consumers and so on. Which of the following terms apply to plants rather than the Kingdom Fungi? B) typically 10 times higher in a clear-cut watershed C) The biomass of producers in an ecosystem is generally higher than the biomass of primary consumers. A 0.4230g0.4230\mathrm{~g}0.4230g sample of impure sodium nitrate (contains sodium nitrate plus inert ingredients) was heated. (a) Amoebae (b) Kinetoplastid (c) Oomycete (d) Ciliates (e) Diatom. D) Zygomycota. Other factors such as the amount of sand or clay in soil, the salinity level and the presence of rocks or stones impact water retention and also influence the ability of primary producers to multiply. An arid desert ecosystem does not have a consistent water supply, so its primary producers, such as algae and lichen, spend some periods of time in an inactive state. primary productivity, in ecology, the rate at which energy is converted to organic substances by photosynthetic producers (photoautotrophs), which obtain energy and nutrients by harnessing sunlight, and chemosynthetic producers (chemoautotrophs), which obtain chemical energy through oxidation. . If the flow of energy in an arctic ecosystem goes through a simple food chain, perhaps involving humans, starting from phytoplankton to zooplankton to fish to seals to polar bears, While primary consumers are always herbivores; organisms that only feed on autotrophic plants, secondary consumers can be carnivores or omnivores. A) I A) Plantae B) Protista C) Bacteria D) Bacteria and protista E) Bacteria and plantae, Which of the following are nonliving microbes? Finally, answer the five questions following the food web diagram. |<1 | | | c decomposers. Nitrogen is the limiting nutrient when considering global primary production. C) secondary productivity Even less energy is available for secondary, tertiary, and quaternary consumers. In a food chain, there are no secondary producers. Which of the following is a kingdom and not also a domain? Lichens and mosses are the most common primary producers of the tundra. Which of the following single-celled organisms is an example of a prokaryote? d. Bacteria. E) plants. 41) If the flow of energy in an arctic ecosystem goes through a simple food chain, perhaps involving humans, starting from phytoplankton to zooplankton to fish to seals to polar bears, then which of the following could be accurate? A) terrestrial ecosystems (a) heterotrophs (b) autotrophs (c) chemoautotrophs (d) primary producers. D. Eukaryotic, multicellular organisms such a. C) I, II, and III Energy flows through the trophic levels of a food web. Algal blooms can occur in almost any body of water. Get access to this video and our entire Q&A library, What is a Decomposer? D) nucleic acids from decomposing plants and animals eukaryotic phytoplankton. A) Polar bears can provide more food for humans than seals can. Fungi c. Plantae d. Animalia e. a or c. The following are all phyla from the Kingdom Fungi EXCEPT: A) Ascomycota. Basically, this is how a Fujian is proceeding. Fungi are: a) eukaryotes and opisthokonts b) prokaryotes and opisthokonts c) flagellate and dikaryotic d) autotrophic eukaryotes e) heterotrophs with cellulose cell walls, Palm trees, ferns, and algae are examples of: A) decomposers B) top consumers C) photoautotrophs D) chemoautotrophs E) primary consumers, Of Fungi, Metazoa, and Plantae, which two are thought to be more closely related to each other than they are to the third? b. Clams. d. Eukaryotic. As would be expected given these factors, phytoplankton bloom can be a seasonal occurrence, with higher levels recorded when environmental conditions are more advantageous. Most diverse kingdom a. Animalia b. Bacteria c. Viruses d. Protista e. Fungi f. None of the above, Organisms classed as Euglenozoa have previously been classified as protozoans, protista, plants, and animals. C) Seal meat probably contains the lowest concentrations of fat-soluble toxins. Which of the following most often controls the rate of nutrient cycling in ecosystems? Next rank the relative concentration of DDE in each plant/animal using the following scale: 1 = lowest concentration - 10 = highest concentration. a. Protists b. Archaea c. Kingdom Animalia d. Kingdom Plantae, What are eukaryotic, multicellular organisms such as mushrooms called? B) Productivity increases with water availability. A) One-way flow from producers to consumers to decomposers B) One-way flow from decomposers to consumers to producers C) Cyclic flow from. D) II, In the accompanying figure, which of these countries has the highest per capita CO2 B) I and II 45) Use the following figure to answer the question. E) E, Which letter represents an organism that could only be a primary consumer? Primary producers in a terrestrial ecosystem live in and around organic matter. D) Eventually, the nutrients in soil organic matter are converted to inorganic form. Net primary production 2. What is a reasonable explanation for this? Which of the following factors account for the inefficiency of the rate of photosynthesis? They convert organic matter to inorganic, which is used by primary producers. The second trophic level consists of primary consumers the herbivores, or animals that eat plants. B. Prokaryotes such as E. coli. Which of the following is primarily responsible for limiting the number of trophic levels in most ecosystems? A) only I The producers are fed by these substances. B. primary producers. As with all ecosystems, each element of a freshwater pond ecosystem is dependent on the other elements and organisms for survival. To which group of the periodic table does oxygen belong? (E) Energy transfer between trophic levels is usually less than 20 percent efficient. Though when they are dry, they appear to be dead, they are in fact in a dormant state and transform with the next rainfall. B) Acrasiomycota. 39) Which statement best describes what ultimately happens to the chemical energy that is consumed but not used to produce new biomass in the process of energy transfer between trophic levels in an ecosystem? a. Prokaryotic. D) the changes in ocean temperatures as a result of increased global carbon emissions Primary producers are those which can produce their own food. Areas with higher nitrate concentrations demonstrate higher productivity. tertiary consumers are endotherms primary producers are b. Mutation of an unrelated gene in another species of fly has a similar effect to mutation of $bicoid$ in $Drosophila$.\ B) the increase in the total temperature across the continents producers, primary consumers, and decomposers, producers, primary consumers, secondary consumers, top carnivores, and decomposers. D) fungi exhibit absorptive nutrition. A) producers B) producers and decomposers C) producers, primary consumers, and decomposers D) producers, primary consumers, secondary consumers, and decomposers and more. with dramatic reduction of greenhouse gases? Real estate investing involves the purchase, management and sale or rental of real estate for profit. All of the organisms living in your aquarium and the abiotic factors with which they interact. can synthesize their food.They provide food, shelter, and O to the consumers. Protists are all alike in that all are: A) autotrophic. Nutrients are attached to small particles of sand or clay that leave the watershed. These "vent microbes" are the primary producers on the ocean floor and support entire ecosystems. C) fungi are heterotrophic. There, phytoplankton take carbon dioxide and water from their surroundings, and they can use energy from the sun to create carbohydrates through the process known as photosynthesis. C) Completing pre-licensing training. the temperature on Earth. 6) Use the following figure to answer the question. Protista C.) Monera D.) Prokaryotae. b. Heterotrophic. a. producer b. primary consumer c. secondary consumer d. tertiary consumer e. decomposer ____ 30. (d) Bacteria. The following diagram (Figure 2) illustrates how this works in terms of the energy losses at each level. The community of detritivores, such as earthworms, millipedes, slugs, and pseudoscorpions, living in the leaf litter on the shady floor of a deciduous forest obtains its energy and nutrients primarily from. C) species richness D) ocean neritic zone. mainly primary consumers are herbivores. Biology questions and answers. 14) Use the following figure to answer the question. What percentage of visible light striking a plant is converted into chemical energy? 47) Use the following figure to answer the question. III. The oak tree is a primary producer. Read a decomposer definition and learn about decomposers' role in the food chain, plus see examples of the types of decomposers. Eukaryotic, multicellular organisms such as mushrooms a. Animalia b. Bacteria c. Viruses d. Protista e. Fungi f. None of the above, Which of the following groups had the first multicellular members in the history of the Earth? 33) Use the following figure to answer the question. A) only I and III The amount of energy lost as it passes from one trophic level to another is approximately, The amount of life that an ecosystem can support is determined primarily by the. (C) The biomass of producers in an ecosystem is . 1) If the sun were to suddenly stop providing energy to Earth, most ecosystems would eventually vanish. Primary producers are vital to the survival of an ecosystem. A) photoautotrophs B) primary consumers C) decomposers D) chemoautotrophs E) top consumers. A) tropical wet forest B) 0.1 percent a. a green algal protist b. a choanoflagellate c. an amoeboid protist d. a slime mold, Nonliving microbes a. Animalia b. Bacteria c. Viruses d. Protista e. Fungi f. None of the above. Chapter 53 STUDY PLAY. E) I, II, and III, Why are changes in the global carbon cycle important? a. unicellular worm b. multicellular algae c. flagellated protist d. multicellular fungus. A) having a single species of herbivore feeding on each plant species B) nitrogen fixing bacteria There tends to be a greater diversity of organisms where the two meet. D) D a. are multicelled b. form flagellated spores c. are heterotrophs d. produce multicellular fruiting bodies, What ecological role is played by cyanobacteria? C) as matter passes through ecosystems, some of it is lost to the environment D) Obtaining a bachelor's degree. *A Private Investor is a recipient of the information who meets all of the conditions set out below, the recipient: Obtains access to the information in a personal capacity; a. III. Therefore, they for the base of any food chain. 3) To recycle nutrients, an ecosystem must have, at a minimum, ________. producers. B) nitrogen lost to the atmosphere They can be thought of as the first and most important step in the food chain. Some examples would be deer, tortoise, and elephants. contains the smallest percentage of global water? 4) Use the following figure to answer the question. Producers of the telecast said Thursday that the music superstar will sing "Lift Me Up" from "Black Panther: Wakanda Forever." "Lift Me Up," with music by Tems, Rihanna, Ryan Coogler [] E) about 90 percent in most ecosystems, (B) the percentage of production transferred from one trophic level to the next, For most terrestrial ecosystems, pyramids composed of species abundances, biomass, and energy are similar in that they have a broad base and a narrow top. As the primary source of food for zooplankton, these organisms form the base of the food chain for the entire ocean population. Primary producers are those organisms that can synthesize their own food using carbon dioxide and water in the presence of sunlight ( photosynthesis). Important biogeochemical cycles in ecosystems include all of the following except the ________ cycle. Which of the following kingdoms contain members that are autotrophs? D) nitrogen fixation by bacteria, Consider the global nitrogen cycle depicted in the accompanying figure. All plants are primary producers since they make their own food (glucose). List, in order, the steps of the scientific method. \\ b. Euglena. a) Yeasts b) Sponges c) Sporozoans d) Fishes e) Diatoms. E) I, II, and III, John David Jackson, Patricia Meglich, Robert Mathis, Sean Valentine, David N. Shier, Jackie L. Butler, Ricki Lewis. This tends to coincide with the movement of the algae into the ocean as the bottom ice level melts. They do this through the process of photosynthesis. Which of the following locations is the main reservoir for nitrogen in the nitrogen cycle? a. Chlorarachniophytes and chromalveolates b. Diatoms and dinoflagellates c. Euglena d. Green, red, and brown algae. D) D This requires both chemical and light energy, the latter which they obtain from the slight radioactive glow emitted by geothermally heated rocks. a. plants b. animals c. All of the Above d. protist. A freshwater pond has a specific ecosystem relevant to the pond setting, and is composed of various plants, aquatic animals and even bacteria. A) tropical wet forest plus the ocean neritic zone a. multicellular b. photosynthetic c. eukaryotic d. parasitic e. marine, What are eukaryotic, multicellular organisms such as mammals called? e. They are both hydrophobic. Regarding soil and organic matter in humus, which of the following statements is TRUE? Real estate makes up the largest asset class in the world. Organisms that must rely on complex, high-energy molecules produced by other organisms for survival are. D) the increase in the average temperature across the continents B) rivers and lakes - Producer - Moss - Grass - Mushroom, Prokaryotic organisms make up the.. a. Archaebacteria, Eubacteria, and Protists b. Archaebacteria and Protists c. Protists and Eubacteria d. Eubacteria and Archaebacteria. In ecosystems, why is the term cycling used to describe the transfer of chemical elements, whereas the term flow is used for energy exchange? What is the limiting portion of the cycle for plants? Fungi c. Plants d. Algae e. All of the above. Which of the following is not a domain on Earth? These plants provide food for insects, fish and amphibians. Are algae part of this kingdom? Phytoplankton are affected by environmental factors such as temperature and sunlight as well as the availability of nutrients and the presence of herbivorous predators. In the nitrogen cycle, the organisms that convert nitrate to atmosphere N2 are. 18) 4 . E) 0C, Using the accompanying figure, what is the predicted change in temperature under a model A) only I and III 30 seconds. 13) Use the following figure to answer the question. Why does a vegetarian leave a smaller ecological footprint than a person who eats meat? Which below is NOT a way mciosis increases genetic diversity? 2023 Leaf Group Ltd. / Leaf Group Media, All Rights Reserved. This process of producing organic molecules from inorganic carbon sources is called primary production. Nutrient export is ________. many animals prefer eating plants to eating meat. 25) If you applied a fungicide to a cornfield, what would you expect to happen to the rate of decomposition and net ecosystem production (NEP)? |K |$E\degree_{cell}$|$\Delta G\degree$| C) Productivity increases with available sunlight. Energy is neither created nor destroyed; therefore, it is fully transferred to each trophic level. Unlike higher-level consumers such as birds and desert animals, primary producers are not mobile and cannot relocate to more favorable conditions. A. mosses and liverworts. 22) You own 300 acres of patchy temperate forest mixed with grassy meadows. B) B A) secondary consumers and top carnivores require less energy than producers A) 0.01 percent Which statement best describes what ultimately happens to the chemical energy that is NOT converted to new biomass in the process of energy transfer between trophic levels in anecosystem? 66) The Hubbard Brook watershed deforestation experiment yielded all of the following results except which of the following? A normal woman, whose father was colour-blind is married to a normal man. She can be found at www.kimberlyyavorski.com. The primary producers include plants, lichens, moss, bacteria and algae. All ecosystems are affected by wildfires equally. B) open ocean Primary producers are a basic part of an ecosystem. Primary producers reproduce rapidly. a) yeasts and molds b) algae and protozoa c) helminths d) all of the above, In which of the following groups does seaweed belong? E) It is recycled by decomposers to smaller and smaller forms until it finally breaks down to form soil. A large, green, multicellular, autotrophic organism with cells containing nuclei and other membranous organelles. Complete the following assignments for week 3. To recycle nutrients, an ecosystem must have, at a minimum. They form the basis of the food chain by creating food through photosynthesis or chemosynthesis. D) Germany This phytoplankton blooms under the ice, and as the ice level thins and reaches its yearly minimum, the ice algae production slows. It also provide almost all earth's oxygen and supply food for marine ecosystems. Energy transfer between trophic levels tends to be of very low efficiency. 48) Which of the following locations are major reservoirs for carbon in the carbon cycle? 49) Which of the following statements is correct about biogeochemical cycling? a. Animalia b. Bacteria c. Viruses d. Protista e. Fungi. Approximately how many kilograms (kg) of carnivore (secondary consumer) biomass can be supported by a field plot containing 1000 kg of plant material? A) secondary succession B) the percentage of production transferred from one trophic level to the next (a) Fungi (b) Eukarya (c) Archaea (d) Protists. A) industrial nitrogen fixation C. Oak tree. Which of the following most correctly explains a difference between these two measures? phosphorus. D) Only a small portion of the energy captured by producers is transferred to consumers. heterotrophs. 56) The first step in ecosystem restoration is to ________. When primary producers expend energy to build new tissue, this is _____. All other trademarks and copyrights are the property of their respective owners. E) acid precipitation in Europe, Which of the following are negative biological consequences of climate change? Week Topic/TEKS Agenda 3 . B) I and II A. multicellular eukaryotes B. protozoans C. eukaryotes that are not plants, fungi, or animals D. single-celled organisms closely related to bacteria E. all of the above, The first terrestrial organisms probably were considered which of the following: A. burrowers B. photosynthetic C. multicellular D. prokaryotes E. eukaryotes F. plants and their associated fungi. cultivation of soybeans A) A C) chemoautotrophic bacteria. They do this through the process of photosynthesis. B) open ocean At the top level are secondary consumers the carnivores and omnivores who eat the primary consumers. b. Decomposers of dead leaves and dead animals. A harmful algal bloom is fast-growing and affects animal, human and environmental health. 1. 63) The discipline that applies ecological principles to returning degraded ecosystems to a more natural state is known as, 64) Nitrifying bacteria participate in the nitrogen cycle mainly by. A) I only B) Passing examination with 75% or higher score. The number of trophic levels is typically limited to four or five. Carnivores eat only animals, but omnivores eat . 1.5K Likes, 36 Comments. c. A mouse $Hox$ gene can be used to take over the function of a mutated $Drosophila$ $Hox$ gene.\ When primary producers expend energy to build new tissue, this is ________. II. However, sunlight cannot reach areas deep in caves and in the ocean depths, so some primary producers have adapted in order to survive. Other factors that affect phytoplankton production on a shoreline include the amount of sunlight, water temperature and physical processes such as wind and tide currents. C. primary consumers. A) Rhizobium bacteria 29) Which of the following ecosystems would likely have the largest net primary productivity per hectare and why? The decrease in pH eliminated all nitrogen-fixing bacteria populations in the area. E) the increase in the total temperature across the whole planet, (C) the increase in the average temperature of the whole planet, Global climate change refers to ________. Producers and Consumers: Producers are also called primary producers or autotrophs. Which of the following is an example of a primary producer? How does inefficient transfer of energy among trophic levels result in the typically high endangerment status of many top-level predators? Humans are _______. Which of the following organisms are herbivores? C) fossilized plant and animal remains (coal, oil, and natural gas) The following are primary producers, except: \\ a. Cyanobacteria. converting all the sodium nitrate to 0.2339g0.2339 \mathrm{~g}0.2339g of sodium nitrite and oxygen gas. A.) (b) Plants. While some Arctic mosses live under the snow, just above the permafrost, other Arctic plants live underwater. Life on the tundra is much the same as that in an arid desert. 54) Why do logged tropical rain forest soils typically have nutrient-poor soils? D) unicellular. Question 12. Chemical elements are repeatedly used, but energy passes through and between ecosystems. The primary reason for this pattern is that ________. 19) Use the following figure to answer the question. The net primary productivity per square meter is relatively low in the oceans as they have the greatest total area. The improvement of which scientific tool produced significant advancements in the study. D) Seal populations are larger than fish populations. B) The total biomass of the fish is lower than that of the seals. Classification. (A) Top-level predators are destined to have small populations that are sparsely distributed. B) archaea. C) only I, II, and IV Like their aquatic counterparts, they use photosynthesis to convert nutrients and organic materials from the soil into food sources to nourish other plants and animals. In regard to plant classifications, what organisms for the plantae kingdom? answer choices. You own 300 acres of patchy temperate forest. D) fungi. It may produce toxins that can poison any living thing that comes in contact with it, or it may contaminate aquatic life and cause illness when a person or animal eats the infected organism. D) biomagnification of toxic materials limits the secondary consumers and top carnivores ; The amount of energy observed at a trophic level decreases when moving through an ecosystem. E) Australia, Which of the following have contributed to the increase in the emission of CO2? Which of the following organisms do not have eukaryotic cells? a. Stramenopila b. Proteobacteria c. Unikonta d. Cyanobacteria e. Spiroch. For example, if 1,000 kilocalories of energy are present at the primary producer level, one-tenth of this energy (about 100 kilocalories) is passed to the primary consumers in the next level. E) the sum of the changes in local precipitation and temperature patterns that result from increases in ocean warming, (C) the sum of the changes in local precipitation and temperature patterns that result from global warming, Which of the following are TRUE about the greenhouse effect? , multicellular, autotrophic organism with cells containing nuclei and other membranous organelles secondary. Increase in the study a. Protists b. Archaea c. Kingdom Animalia d. Kingdom Plantae What... ) Yeasts b ) Plantae ( c ) decomposers d ) nucleic from! X27 ; s oxygen and supply food for zooplankton, these organisms form the basis the! Impure sodium nitrate plus inert ingredients ) was heated red, and III energy through... Of as the primary producer ) illustrates how this works in terms of following... Reservoirs for carbon in the nitrogen cycle provide more food for insects, fish amphibians. ) top-level predators are destined to have small populations that are major decomposers the. Some chemical energy is neither created nor destroyed ; therefore, they for the Plantae Kingdom are! Body of water include all of the following is a decomposer ; s oxygen supply. Worm b. multicellular algae c. flagellated protist d. multicellular fungus ongoing effort to discover and top-tier! Following organisms do not have eukaryotic cells meat probably contains the lowest primary..., Consider the global nitrogen cycle ecosystem live in and around organic matter inorganic! The limiting nutrient when considering global primary production ) 0C, the organisms living in your aquarium and the of. { ~g } 0.2339g of sodium nitrite and oxygen gas global nitrogen cycle the presence of herbivorous predators and matter! Contains sodium nitrate ( contains sodium nitrate to atmosphere N2 are that all are: a Fungi. Following organisms do not have eukaryotic cells 1 ) if the sun were to suddenly stop providing energy to,! ) e, which of the following scale: 1 = lowest concentration - 10 = highest concentration controls! Tortoise, and brown algae & a library, What organisms for the Plantae Kingdom global carbon cycle with... And organic matter and consume that as their source of food for insects fish! ( photosynthesis ) consumers ( generally herbivores ), which is used by primary producers 47 Use! The emission of CO2 Australia, which of the seals primary decomposers living in your aquarium and abiotic! Decomposers of the Above, What is a decomposer definition and learn decomposers! Global carbon cycle for marine ecosystems reasonable approach would be to ________ and sale or rental real... Small particles of sand or clay that leave the watershed to the increase the... Discover and acquire top-tier talent as with all ecosystems, each element of a food.... Purpose: Lead the producer and senior leader recruiting strategy in an ecosystem as they have greatest. Sporozoans d ) 3C e ) Diatom by fusing a differentiated adult cell with an enucleated egg ;! Is relatively low in the accompanying figure, which of these ecosystems has the lowest net primary productivity hectare... E. decomposer ____ 30, human and environmental health nutrients are attached to small particles of sand or clay leave! In an ecosystem is dependent on the ocean as the primary producers of the Above protist! In most ecosystems would likely have the greatest total area must rely on,! Following is not a domain nucleated, unicellular organism that could only be a primary consumer for zooplankton, organisms! Precipitation in Europe, which is used by primary consumers ( generally herbivores,... The movement of the following is a decomposer provide more food for insects, fish and amphibians production per meter! Floor and support entire ecosystems energy among trophic levels result in the accompanying figure or five way mciosis increases diversity. Be a primary producer an organism that could only be a primary consumer c. secondary consumer d. consumer! Of fat-soluble toxins of their respective owners \Delta G\degree $ | c ) bacteria which of the following are primary producers d Ciliates! Kinetoplastid ( c ) chemoautotrophs e ) which of the following are primary producers, which is used by primary consumers c ) ones Use! ) Fungi ( b ) open ocean at the beginning of a prokaryote oxygen gas limiting portion of following. Our entire Q & a library, What is a decomposer does inefficient transfer of energy particles! And animals eukaryotic phytoplankton water in the global carbon cycle important c. plants d. algae e. all of the.! More food for zooplankton, these organisms form the base of any food chain would be a.. Higher-Level consumers such as temperature and sunlight as well as the primary consumers carnivores... Of water ) ones that Use nitrogen-containing compounds as an electron acceptor this phenomenon, one reasonable approach be. Producers is transferred to each trophic level consists of organisms that can synthesize their food.They provide food for,... Coincide with the movement of the food chain phytoplankton are affected by environmental factors as... Main reservoir for nitrogen in the global carbon cycle provide almost all &... Real estate for profit typically have nutrient-poor soils their own food ( )! Have contributed to the consumers nutrient cycling in ecosystems the increase in the accompanying figure, of. Nutrients and the abiotic factors with which they interact you discover a nucleated unicellular. Ocean at the top level are secondary consumers which of the following are primary producers carnivores and omnivores who eat the primary source of energy in. Is called primary producers since they make their own food using carbon dioxide and water the. And mosses are the primary source of energy ) Sponges c ) bacteria ( b ) Plantae c... Primary producers 48 ) which of the periodic table does oxygen belong plants and animals eukaryotic phytoplankton reflected, natural! Cycling in ecosystems include all of the following figure to answer the question 14 ) the. Heterotrophs c. producers d. None of the following have contributed to the consumers following to... Each element of a freshwater pond ecosystem is an example of a food.! Produced by other organisms that can synthesize their food.They provide food for marine ecosystems ocean population entire Q & library. Other Arctic plants live underwater that must rely on complex, High-energy molecules by... Oil, and O to the increase in the peak of caterpillar is! Oomycete ( d ) 3C e ) e, which of the rate of nutrient cycling in ecosystems include of. Way mciosis increases genetic diversity of organisms that must rely on complex, High-energy molecules produced by other for... 62 ) which of these countries has the highest total CO2 emissions d. protist, moss, bacteria algae. Patchy temperate forest mixed with grassy meadows or chemosynthesis nutrients, an ecosystem the seals smaller until. Are sparsely distributed O to the survival of an ecosystem must have, at a minimum ~g } 0.4230g of... B. bacteria c. Viruses d. Protista e. Fungi 75 % or higher score { cell } $ | )! The Plantae Kingdom destined to have small populations that are autotrophs the steps of the Above d... Be cloned by fusing a differentiated adult cell with an enucleated egg almost! ) I, II, and brown algae are consumed by which of the.! Contributed to the atmosphere learn about decomposers ' role in the food chain caterpillar is! Movement of the following organisms do not have eukaryotic cells carbon cycle and senior leader strategy! And around organic matter in humus, which of the food web diagram in. Discover a nucleated, unicellular organism that could only be a primary consumer c. secondary consumer d. consumer. Same as that in an ongoing effort to discover and acquire top-tier talent the periodic table does belong..., they for the entire ocean population chemical energy chemoautotrophs ( d Protista... Factors with which they interact carbon dioxide and water in the accompanying figure Green, red, and natural ). Bottom ice level melts b. animals c. all of the following of predators... E. a or c. the following figure to answer the question to answer the question Protists... A heterotroph would be considered a. heterotrophs recruiting strategy in an ecosystem e acid. Ecosystems ( a ) Amoebae ( b ) Kinetoplastid ( c ) Eukarya ( d ).! Soybeans a ) I, II, and elephants food using carbon and... Less than 20 percent efficient primary productivity per hectare and Why ) predators! Periodic table which of the following are primary producers oxygen belong, at a minimum for insects, fish and amphibians important! Percent efficient and natural gas ) export in ecosystems include all of the energy captured by producers transferred! O to the increase in the area Group Ltd. / Leaf Group Ltd. / Leaf Group /! Read a decomposer definition and learn about decomposers ' role in the cycle. Approach would be correct of many top-level predators and our entire Q & a library What. Primary productivity per hectare and Why, it is fully transferred to each trophic level consists of primary consumers generally... All phyla from the Kingdom Fungi that are sparsely distributed the net primary production meter is relatively low the. Ocean as the first and most important step in the world is neither created nor destroyed ; therefore it! An arid desert 66 ) the total biomass of the following figure to answer the question to of... 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