Get access to this video and our entire Q&A library, What is a Decomposer? Which of the following consume other living organisms? The measures of net primary production (NPP) and net ecosystem production (NEP) both can be used to quantify gross primary production (GPP). NPP represents the stored energy available to consumers in an ecosystem. Consider the following organisms: Paramecium, Euglena, Spirogyra, Oscillatoria, Anabaena, and Stentor. D) Nutrient cycling rates tend to be limited by decomposition. A) pesticide use 11) Which of the following has the greatest effect on the rate of chemical cycling within an. Study with Quizlet and memorize flashcards containing terms like When you eat an apple, you are serving as a _____. a. Chlorarachniophytes and chromalveolates b. Diatoms and dinoflagellates c. Euglena d. Green, red, and brown algae. The melting of sea ice in the spring along with the increased availability of sunlight triggers algae production in the Arctic region. C) Productivity increases with available sunlight. 1.5K Likes, 36 Comments. C) decrease in the amount of energy in a trophic level that is lost as it passes to the next higher level B) sedimentary bedrock Important biogeochemical cycles in ecosystems include all of the following except the ________ cycle. 38) Which trophic level is most vulnerable to extinction? C) an innate change in the biological clock of the caterpillars Which of the following statements regarding this flow of energy is true? In some cases these nutrients are then stored and only released slowly in anticipation of the next rain event. the temperature on Earth. C) Completing pre-licensing training. C) internal nitrogen cycling in the oceans B) only II and IV Chemoautotrophic prokaryotes near deep-sea vents are primary producers. A. mosses and liverworts. What is the production efficiency of this owl? (d) Bacteria. E) nitrate and ammonium ions in the soil, (E) nitrate and ammonium ions in the soil, In the nitrogen cycle, the bacteria that replenish the atmosphere with nitrogen are ________. Secondary consumers occupy the third trophic level in a typical food chain. About how much of the chemical energy fixed by photosynthesis of the grass (100 percent) is available to the hawk? The genes may be on different chromosomes. Animals, fungi, most protists, and bacteria are: a. autotrophs b. producers c. heterotrophs d. multicellular, Which of the following is not a kingdom? C) only I, II, and IV Much larger than bonds and stocks, which respectively rank second and third by total market cap. contains the smallest percentage of global water? Regardless of its source, this energy is used to synthesize complex organic molecules from simpler inorganic compounds such . They take food materials from producers and converts the inherent chemical energy into other forms of energy. 68) If you applied a fungicide to a cornfield, what would you expect to happen to the rate of decomposition and net ecosystem production (NEP)? I believe the correct options to be E) Li . A) The energy transfer between the primary producers and the primary consumers is higher in the marine ecosystem than the grassland B) The ecological efficiency between the primary consumers and secondary consumers is higher in the marine ecosystem than the grassland C) Both A & B are true. C) C Net primary productivity is the rate of carbon dioxide fixation by photosynthetic activity minus the fraction of carbon used for the maintenance and cellular respiration by the autotrophic planktonic microbes and the benthic plants. Chemical elements are repeatedly used, but energy passes through and between ecosystems. Which one of the following is a defining characteristic of animals but not of plants? A herbivore is this. C) region In regard to plant classifications, what organisms for the plantae kingdom? 27) What advantage would there be for an ecosystem ecologist to measure net ecosystem production (NEP) instead of net primary production (NPP)? D) Seal populations are larger than fish populations. Which protists are the most abundant marine photosynthetic producers? 3) To recycle nutrients, an ecosystem must have, at a minimum, ________. a) Yeasts b) Sponges c) Sporozoans d) Fishes e) Diatoms. What is the likely cause of this in freshwater ecosystems? b secondary consumers. Which of the following describes how matter moves between producers, consumers, and decomposers in an ecosystem. producers, primary consumers, and decomposers, producers, primary consumers, secondary consumers, top carnivores, and decomposers. The primary reason for this pattern is that ________. B) fungi have cell walls made of chitin. This requires both chemical and light energy, the latter which they obtain from the slight radioactive glow emitted by geothermally heated rocks. E) I, II, III, and IV, Global warming refers to ________. 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. Which of the following are often the first macroscopic organisms to colonize an area during primary or secondary succession? For each organism, identify its domain (Bacteria or Eukarya) and the appropriate classification group: protozoan, algae, or cyanobacteria. 18) Use the following figure to answer the question. E) may be autotrophic or heterotrophic, (C) convert organic materials from all trophic levels to inorganic compounds usable by primary 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 ________. B) rivers and lakes (a) Archaea (b) Plantae (c) Fungi (d) Protista (e) Animalia. zooxanthellae B) only II and IV E) Australia, In the accompanying figure, which of these countries has the highest total CO2 emissions? A) typically 10 times lower in a clear-cut watershed It also provide almost all earth's oxygen and supply food for marine ecosystems. also eat any number of primary consumers or producers. c. Plants. 53) The Hubbard Brook watershed deforestation experiment revealed that ________. A) only I The first trophic level of an ecosystem consists of. Producers provide food to consumers because ___. The primary sources of greenhouse gas emissions in the United States are: Transportation (27% of 2020 greenhouse gas emissions) - The transportation sector generates the largest share of greenhouse gas emissions. 60) Acid precipitation lowered the pH of soil in a terrestrial ecosystem that supported a diverse community of plants and animals. (a) Animals. Life on the tundra is much the same as that in an arid desert. C) 4C then which of the following could be TRUE? You own 300 acres of patchy temperate forest. B) Top-level feeders tend to be small but are capable of conserving more energy. Which one of the following actions would increase the net primary productivity of the area the most? 57) The goal of restoration ecology is to ________. D) accidental introduction of a prolific culture of algae But an unlikely contributor makes their survival and, therefore, the entire rest of the food web's survival possible. more similar questions B) nitrogen fixing bacteria At the top level are secondary consumers the carnivores and omnivores who eat the primary consumers. Short Answer. *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; B) conversion of grasslands and forests into agricultural fields The oak tree is a primary producer. $\text{\red{Form a Hypothesis}}$ Suppose you touched the tip of a glass rod to one of the clear areas and then touched it again to the surface of a petri dish with a fresh lawn of E. coli. A) rate of decomposition of detritus 50) Use the following figure to answer the question. a. bacteria b. archaea c. protists d. fungi e. plants f. animals. III. What is the approximate production efficiency of this animal? Plantae B.) C) secondary productivity This non-linear set of interactions which shows the complex flow of energy in nature is more easily visualized in the following diagram. Some of the energy is reflected, and some is absorbed by the Earth's surface. Measurements of phytoplankton production have been found to be higher near shorelines in areas where nutrients from the land essentially fertilize the ocean with nitrogen and phosphorous. The number of trophic levels is typically limited to four or five. II. Approximately how many kilograms (kg) of carnivore (secondary consumer) biomass can be supported by a field plot containing 1000 kg of plant material? B) nitrite ions in the soil D) Germany Organism Status 1. All the organisms above are producers except for fungi. All the following are characteristics of at least some of bacteria except: a. may be photosynthetic b. may be heterotrophic c. may have a cell wall d. may be multicellular with a nucleus, Which of these protists is hypothesized to be ancestral to animals? Nutrients dissolve in the water running through the watershed. It is eliminated as feces or released as heat to satisfy the second law of thermodynamics. Which of the following ecosystems would likely survive the longest after this hypothetical disaster? D) Obtaining a bachelor's degree. Which of the following most often controls the rate of nutrient cycling in ecosystems? Primary producers support the primary consumers in an ecosystem. What is the reason for this seeming contradiction? What nuclide will be formed when 86222Rn{ }_{86}^{222} \mathrm{Rn}86222Rn emits an alpha particle? Which of the following is a consequence of biological magnification? C) Seal meat probably contains the lowest concentrations of fat-soluble toxins. 67) Which of the following would be considered an example of bioremediation? B) Decomposers compete with higher-order consumers for nutrients and energy. Nearly all of Earth's primary productivity is generated by photoautotrophs. 52) Primary producers support the primary consumers in an ecosystem. Production increases correspond to periods of ice thickening increases in the fall, while there is still significant sunlight. A freshwater pond has a specific ecosystem relevant to the pond setting, and is composed of various plants, aquatic animals and even bacteria. D) Eventually, the nutrients in soil organic matter are converted to inorganic form. Three former Rust crew members have filed a new lawsuit against Alec Baldwin and the film's producers, claiming they failed to follow safety rules. 7) Use the following figure to answer the question. Step 1: Trophic levels. Herbivores are group of organisms that feeds on plants alone. E) Fish can potentially provide more food for humans than seal meat. Week Topic/TEKS Agenda 3 . E) trophic structure, What factor could potentially increase the length of a food chain? Study with Quizlet and memorize flashcards containing terms like When primary producers expend energy to build new tissue, this is ________. B) oceans (a) heterotrophs (b) autotrophs (c) chemoautotrophs (d) primary producers. In general, the rate at which energy is stored by organisms through the formation of organic matter is called: primary productivity. B) <1C Primary producers are consumed by primary consumers (generally herbivores), which are then consumed by secondary consumers and so on. (D) net primary productivity and the amount of energy available to consumers, Approximately what percentage of the energy from sunlight is converted into gross primary. They use the chemical energy found in the minerals of the hot spring to create hydrogen sulfide. Since they are small in size and can be susceptible to changing environmental conditions, ecosystems with more diverse populations of primary producers tend to thrive more than those with homogeneous populations. A) China Conditions that are right for one organism may not be for another, so it benefits the ecosystem when one can be dormant while another thrives. Each new product is produced from different wood slabs. Producers ( that synthesize their own food through photosynthesis) occupy the first trophic level in a food chain and the amount of biomass can be depicted through pyramid of biomass, which contains primarily four trophic levels that are - Primary producers, Primary consumers, Secondary consumers, and Tertiary consumers. A) increased solar radiation 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. Where the water is too deep for sunlight to reach the bottom, microscopic plant cells known as phytoplankton provide most of the sustenance for aquatic life. B) nitrogen lost to the atmosphere It is a way of classifying animals, plants, and fungi that eat other organisms in order to survive. 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, A) Plantae B) Protista C) Bacteria D) Bacteria and protista E) Bacteria and plantae, Which of the following are nonliving microbes? 65) Which of the following has the greatest effect on the rate of chemical cycling in an ecosystem? b. Mutation of an unrelated gene in another species of fly has a similar effect to mutation of $bicoid$ in $Drosophila$.\ a. D) biomagnification of toxic materials limits the secondary consumers and top carnivores Changing conditions such as an earlier or faster ice melt may reduce the levels of ice algae, and a change in the timing of the algae release could impact the survival of consumers. A) producers B) producers and decomposers C) producers, primary consumers, and decomposers D) producers, primary consumers, secondary consumers, and decomposers and more. c. A mouse $Hox$ gene can be used to take over the function of a mutated $Drosophila$ $Hox$ gene.\ Terms in this set (78) The process by which energy derived from solar radiation is used by certain organisms to form organic matter is called: photosynthesis. 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? (c) Fungi. Answer: Option 3) primary producer. A) industrial nitrogen fixation When the sea ice melts, the ice algae are released into the water and add to the phytoplankton bloom, impacting the polar marine food web. a. Heterotrophs b. List the other elements in the group. 20) Use the following figure to answer the question. 24) Many of the organisms in the ocean are nutrient-limited. 30 seconds. C) Japan Green algae c. Plants d. Fungus, Which of the following is an example of a eukaryotic organism? 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