A desert ecosystem includes grasses, mice, snakes, and hawks. As you move up the energy pyramid of this ecosystem, each level has energy than the one below.
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A desert ecosystem includes grasses, mice, snakes, and hawks. As you move up the energy pyramid of this ecosystem, each level has energy than the one below.
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- Which statement about energy is false?Group of answer choices It includes work, plus anything that can be transformed into work. In chemical form, it is passed up the food chain, along with nutrients. It moves between the living and nonliving world. Because energy is neither created nor destroyed, ecosystems can run indefinitely without any input energy. Some ecosystems can function independent of the energy of sunlight.A desert ecosystem includes grasses, mice, snakes, and hawks. As you move up the energy pyramid of this ecosystem, each level has energy *blank* than the one below.Interpreting Data In a classic study, John Teal measured energy flow in a salt marsh ecosystem. The table below shows some of his results. Form of energy Kcal/m?/yr Efficiency of energy transfer (%) Sunlight 600,000 n/a Chemical energy in producers Chemical energy in primary consumers 6,585 81 Data from: J. M. Teal, Energy Flow in the Salt Marsh Ecosystem of Georgia. Ecology 43: 614-24 (1962). a. Calculate the efficiency of energy transfer by the producers. That is, what percentage of the energy in sunlight was converted into chemical energy and incorporated into plant biomass? b. Calculate the efficiency of energy transfer by the primary consumers. What percentage of the energy in plant biomass was incorporated into the bodies of the primary consumers? What became of the rest of the energy? c. How much energy is available for secondary consumers? Based on the efficiency of energy transfer by primary consumers, estimate how much energy will be available to tertiary consumers. d. Draw a…
- support or refute the following statements based on what you learned about energy flow, biogeochemical cycling, decomposition, trophic levels, and keystone species. You may add a diagram or illustration to support your answer. Shark fin soup can cause the collapse of coral reef ecosystemWhich of the following is true about energy flow in ecosystems on Earth? 99% of energy that reaches the earth is used to drive the process of photosynthesis Only about 10% of energy is moved from one trophic level to the next, while the remaining is lost as heat A very small amount of solar radiation that reaches the earth is scattered or reflected The Law of Conservation of Energy states that energy cannot be destroyed, but it can be created in plantsAs a rule of thumb, about one-tenth of the energy or biomass consumed is stored at each trophic level. About how many kg of feed should it take to produce 1 kg of chicken meat that we eat? How much more energy should it take to provide you a meal of meat compared to vegetables?
- Energy transferred from one trophic level to the next in an ecosystem is measured in calories, numbers, and in biomass. If a rangeland has a biomass of 100, 000g/m2 from the grass, how much biomass will be available in human beings who eat the cow that eat that grass?bPlease help me with this question at the earliest need to submit the answer
- As a general rule, for each jump up in trophic level, about how much does the available energy drop? Group of answer choices practically 100 percent 90 percent 10 percent 30 percent 50 percentThe biogeochemical cycles are: Thermodynamic processes that end in the same process in which they started. They are cycles that describe the different types of energy in an ecosystem. They are phases through which the chemical elements pass in the form of molecules through the air and water. Those that represent the continuous circulation of various nutrients.This conceptual model to the right shows the flow of energy through a spring ecosystem in Silver Springs, Florida from Figure 46.8 in your textbook. 7a. Which value/number on this diagram represents gross primary productivity (GPP)? Express using the units kcal/m?/yr. Sunlight 1,700,000 kcalim?lyr Primary producers 13,187 20,810 7,618 4,250 Primary consumers 7b. Which value/number represents net primary productivity (NPP)? Express using the units kcal/m?/yr. 2,265 3,368 1,103 720 Secondary consumers 272 383 111 90 7c. What accounts for the difference in GPP and NPP? Tertiary consumers 16 21 5 Decomposers 7d. What is the efficiency of energy transfer between the primary producers and the primary consumers? Is this more or less efficient than the transfer between a 5,060 5,060 Total heat and respiration 20,810 secondary consumer and tertiary consumer? Explain. respiration + heat to decomposers