Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Textbook Question
Chapter 55, Problem 2TYK
Which of the following statements about ecosystems is true?
- a. Energy is recycled through the trophic structure.
- b. Energy is usually converted from sunlight by primary producers, passed to secondary producers in the form of organic compounds, and lost to detritivores in the form of heat.
- c. Chemicals are recycled between the biotic and abiotic sectors, whereas energy makes a one-way trip through the food web and is eventually dissipated as heat.
- d. There is a continuous process by which energy is lost as heat, and chemical elements leave the ecosystem through runoff.
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Students have asked these similar questions
Which of the following statements BEST describes energy transfer in an ecosystem?
A.
If the primary producer has 175,000 kcal available, the secondary consumer will receive 17,500 kcal from the primary consumer.
B.
If the primary consumer has 175,000 kcal available, the secondary consumer will receive 17,500 kcal from the primary consumer.
C.
If the primary consumer has 175,000 kcal available, the tertiary consumer will receive 175 kcal from the secondary consumer.
D.
If the primary producer has 175,000 kcal available, the tertiary consumer will receive 17,500 kcal from the secondary consumer.
The process of certain elements through different trophic levels is also called
A. food chain
B. biodiversity
C. biogeochemical cycling
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?
Chapter 55 Solutions
Study Guide for Campbell Biology
Ch. 55 - What may happen if the input of a mineral nutrient...Ch. 55 - Compare the movement of energy and chemical...Ch. 55 - a. List some ecosystems with high primary...Ch. 55 - a. Why is production efficiency higher for fishes...Ch. 55 - What is the biological importance of water,...Ch. 55 - a. In which natural ecosystem do nutrients cycle...Ch. 55 - Contrast bioremediation and biological...Ch. 55 - Prob. 1SYKCh. 55 - What is secondary production? How does it relate...Ch. 55 - What processes mediate the interconversion of the...
Ch. 55 - The inefficiency of energy transformations is...Ch. 55 - Which of the following statements about ecosystems...Ch. 55 - Primary production is a. equal to the standing...Ch. 55 - The open ocean and tropical rain forest are the...Ch. 55 - Production in terrestrial ecosystems is affected...Ch. 55 - Which of the following statements concerning net...Ch. 55 - Secondary production is a. measured by the...Ch. 55 - Most food chains have only three to five links....Ch. 55 - Some authors have suggested that humans world-wide...Ch. 55 - Which of the following organisms would you predict...Ch. 55 - If a bird eats seeds with an energy content of 400...Ch. 55 - Biogeochemical cycles are global for elements a....Ch. 55 - The atmosphere is the main reservoir for a. water...Ch. 55 - Which of these processes is incorrectly paired...Ch. 55 - Clear-cutting tropical forests yields agricultural...Ch. 55 - Plants, prokaryotes, and fungi are useful in...Ch. 55 - Which of the following actions is an example of...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- 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_forwardAn ecosystem thrives with biotic and abiotic component parts. An example of an abiotic part of an ecosystem is ... a.minerals b.fungus c.decaying plants d.micro-bacteriaarrow_forwarda. What factors cause energy to decrease with each trophic level?b. How is it possible for energy to be lost and the ecosystem to stillrun efficiently?c. Are the nutrients on the earth a renewable resource? Why or why not?arrow_forward
- The total amount of living tissue within a given trophic level is called the: O A. Biomass O B. Energy mass C. Organic mass O D. Trophic massarrow_forwardYou're studying two lakes in neighboring valleys in the Cascades. One lake has a food web with three trophic levels, and the other has a food web with five trophic levels. Which of the following is most likely true about these lakes? a. The lake with the longer food web likely has lower concentrations of nutrients like phosphorus. O b. The lake with the longer food web is more resilient to disturbances like a heat wave that stresses small fish (the middle trophic levels). C. Based on principles of trophic transfer, the lake with the longer food web should have higher net primary production. d. Based on principles of trophic transfer, the lake with the longer food web should have lower net primary production.arrow_forwardAnswer the questions below based on the Active Reading above: 1. Organisms need to live and to survive. 2. What do limiting factors do? a. Separate biotic factors from abiotic factors. b. Determine which is the predator and which is the prey. €. Regulate how many organisms live in an ecosystem. d. Determine which natural disasters will hit an area. 3. Which of the following are abiotic limiting factors? a. The decomposers in an ecosystem. b. The populations of producers in a given habitat. c. Carrying capacities of several species. d. Water, space, and oxygen. 4. Which of the following is a biotic limiting factor? a. The amount of breathable oxygen available to a population. b. Food available for organisms lw ast C. The nitrogen to oxygen ratio in the air supply. d. The number of bodies of water in a habitat. 5. In biology, what is carrying-capacity? a. The maximum population size an ecosystem can support. b. A total list of the limiting factors. C. How much weight an organism can…arrow_forward
- As energy is transferred from one trophic level to the next, substantial amounts of energy are lost to/asa. undigestible biomass.b. heat.c. metabolism.d. All of the above.arrow_forwardWhich statement about energy flow in ecosystems is accurate? A.Energy flow reaches an equilibrium within ecosystems such that every trophic level has the same amount of energy. B. Because forests have relatively few large trees which support numerous smaller organisms, they have less energy at the lowest trophic level than at higher trophic levels. C. Energy is recycled within ecosystems, moving from producers to consumers to decomposers and back to producers. D. Energy flows through ecosystems with some lost at every transition resulting in lower trophic levels always containing more energy than higher trophic levels. E. Aquatic ecosystems have more energy at higher trophic levels than at lower trophic levels, whereas terrestrial ecosystems have more energy at lower trophic levels. Please answer asap and type your answer and do not copy from anywhere pleasearrow_forwardThe number of trophic levels an ecosystem can support is driven by… (select all that apply) A- The amount of energy available (primary productivity) B- The speed of nutrient cycling (decomposition) C- The population size of top predators in the ecosystem D- The efficiency of energy transfer across trophic levels E- The composition of the plant communityarrow_forward
- Which of the following is true about the length of food chains? a. Food chains can support up to 10 trophic levels. b. Food chains are shorter in stable habitats. c. Energy lost as heat at each trophic level limits the length of food chains. O d. The extinction of a species in a food chain will affect only the species directly preying upon it. e. An ecosystem with a high-enough number of species will feature a limitless length of food chain.arrow_forward____ flow(s) one-way through ecosystems while ____ is/are recycled. a. Biomass . . . elementsb. Energy . . . elementsc. Elements . . . energyd. Producers . . . consumersarrow_forwardOf the total amount of energy that passes from one trophic level toanother, about 10% isa. respired and becomes heat.b. passed out as feces or urine.c. stored as body tissue.d. recycled to autotrophs.e. All of these are correctarrow_forward
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