Biology
11th Edition
ISBN: 9781259188138
Author: Peter H Raven, George B Johnson Professor, Kenneth A. Mason Dr. Ph.D., Jonathan Losos Dr., Susan Singer
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 57, Problem 7U
Inverted ecological pyramids of real systems usually involve
a. energy flow.
b. biomass.
c. energy flow and biomass.
d. None of the choices is correct.
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Chapter 57 Solutions
Biology
Ch. 57 - Which of the statements about groundwater is NOT...Ch. 57 - Photosynthetic organisms a. fix carbon dioxide. b....Ch. 57 - Prob. 3UCh. 57 - Nitrogen is often a limiting nutrient in many...Ch. 57 - Prob. 5UCh. 57 - Prob. 6UCh. 57 - Inverted ecological pyramids of real systems...Ch. 57 - Prob. 8UCh. 57 - Prob. 9UCh. 57 - The equilibrium model of island biogeography...
Ch. 57 - Based on results from studies at Hubbard Brook...Ch. 57 - According to the trophic cascade hypothesis, the...Ch. 57 - At Cedar Creek Natural History Area, experimental...Ch. 57 - Given that ectotherms do not utilize a large...Ch. 57 - Given that, in general, energy input is greatest...Ch. 57 - Prob. 3SCh. 57 - Explain several detailed ways in which increasing...
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- The number of carnivores found at the top of an ecological pyramid is limited by thea. number of organisms above the top carnivores.b. number of trophic levels below the producers.c. biomass of the decomposers.d. amount of energy transferred to the top carnivores.arrow_forward3. The diagram below represents the feeding relationships between organisms in a terrestrial ecosystem. Use it to answer the following questions: Lion Fox Wild cat Hawk Guate Rabbit Owl Rat Rattle snake Tomato plant a. Classify each organism in the diagram on basis of its role for energy flow in the ecosystem. b. Construct 4 food chains from the diagram, each with not less than four trophic levels c. Assign each organism in the diagram to its appropriate trophic level. d. If the tomato plant produced 10,000 KJ of energy, how much of it will be available to the: i. wildcat ii. hawk c. What two other options have the lion for obtaining energy? Which one is better and why? f. If there was a sudden decrease in the wildcat population, state one possible effect on the population of the: i. rat ii. rabbit iii. lion iv. hawk Page 2 of 3arrow_forwardThe best long-term solution to the greenhouse gas problem is a.Develop a machine which absorbs carbon dioxide and releases oxygen, similar to what plants do, but better. b.Generating enough smoke in the atmosphere, so that less sunlight penetrates to the earth's surface. c.Using powerful rockets, shift the earth in its orbit slightly, so that it is farther from the sun. d.Using only clean sources of energy.arrow_forward
- EcosystemA hasprimary production of 1000 g C /m2/yr and ecological efficiency of 10%. Ecosystem B has primary production of 300 g C /m2/yr and an ecological efficiency of 25%. a.Which ecosystem will have more production at thesecondary consumer (carnivore) trophic level? b.Which ecosystem is more likely to support an endothermic primary consumer (herbivore)? c.If atrophic level requires at least 1 gC/m2/yr in order to exist, how many trophic levels can each of these ecosystems support?d.Given your answer to part c, which do you thinkhas a larger impact on the energy available at upper trophic levels: primary productivity or efficiency of energy movement across trophic levels?arrow_forwardA more complete way of looking at the interaction between different species and energy transfer is A. thermodynamics B. menus C. food web D. food chainarrow_forwardIn landscape ecology, the matrix is the area surrounding a habitat patch. The matrix can affect a species living in the habitat patch by altering: O A. Dispersal between patches B. The availability of resources C. The abiotic environment in patches D. Our appreciation of Keanu Reeves' acting skills E. A, B and C are correctarrow_forward
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