Biology: Life on Earth (11th Edition)
11th Edition
ISBN: 9780134168296
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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Chapter 29, Problem 1AC
Humans are omnivores who can feed on several trophic levels. Discuss how the inefficiency of energy transfer between trophic levels might apply to how many humans can be fed, with what environmental impacts, by people eating fundamentally different diets.
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ANSWER CHOICES ARE IN THE PHOTO. thanks.
Chapter 29 Solutions
Biology: Life on Earth (11th Edition)
Ch. 29 -
1. Which trophic level(s) must be present to...Ch. 29 - Prob. 2MCCh. 29 - Denitrifying bacteria convert ammonia to nitrate...Ch. 29 -
4. Net primary production per unit area is likely...Ch. 29 - The effect of CO2 emissions from burning fossil...Ch. 29 -
1. Nearly all life gets its energy from _______...Ch. 29 -
2. Photosynthetic organisms are called either...Ch. 29 -
3. Feeding levels within ecosystems are also...Ch. 29 - In general, only about ______ percent of the...Ch. 29 - Prob. 5FTB
Ch. 29 -
6. During the nitrogen cycle, nitrogen gas is...Ch. 29 - Prob. 7FTBCh. 29 - Prob. 1RQCh. 29 -
2. What is a producer? What trophic level does it...Ch. 29 - 3. Define net primary production. Would you...Ch. 29 - Name the first three trophic levels. Among the...Ch. 29 - How do food chains and food webs differ? Which is...Ch. 29 - Define detritivore and decomposer and explain...Ch. 29 -
7. Trace the movement of carbon from one of its...Ch. 29 - Prob. 8RQCh. 29 - Trace a pathway of a phosphorus molecule from a...Ch. 29 -
1. Humans are omnivores who can feed on several...Ch. 29 - Discuss the contribution of human population...
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- Explain why there are differences in the efficiency of energy transfer between trophic levels. Explain what happens to the energy which is not transferred to the next trophic level in a food chain when one organism feeds on another.arrow_forwardList two ways in which you could apply these concepts : (a) “as energy flows through ecosystems in food chains and webs, the amount of chemical energy available to organisms at each succeeding feeding level decreases” and (b) “matter, in the form of nutrients, cycles within and among ecosystems and the biosphere, and human activities are altering these chemical cycles.” to making your lifestyle more environmentally sustainable.arrow_forwardFlow of energy through various trophic levels in an ecosystem is unidirectional and non-cyclic.Explain.arrow_forward
- As 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?arrow_forwardHypothetical balanced food chain. Sun and Earth supply 6 units of energy to each plant. For higher tropic levels, individuals consume 2 units of energy each before passing the remainder to the next trophic level. The number of individuals in each trophic level is given below. Complete the table below by computing for the number of energy units in each column. Answer the following questions: Discuss how the food chain works. Where does each trophic component or level get its energy (food) from? What is the ultimate source of energy for all components of the food chain? Which component got the highest amount of available energy/individual? Why do members of this component need the most energy?arrow_forwardsupport 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 ecosystemarrow_forward
- Availability of energy is less for entities at higher trophic levels.Why?arrow_forwardWhich statement best explains why persistent, fat-solublechemicals such as methylmercury accumulate in the highesttrophic levels?a. Animals at the highest trophic levels eat the lowest-quality food.b. The amount of biomass increases in each trophic level, and largeorganisms accumulate the most methylmercury.c. Large organisms are often herbivores, so they would consumemethylmercury directly.d. Methylmercury does not leave an animal’s body; each predatortherefore consumes the mercury contained in many prey.arrow_forwardTrophic levels Part A) In food chains and webs, what trophic level must you have more of than others. Part B) Each trophic level has how much LESS energy? Part C) Can an organism fill more than one trophic level? Explain your answer.arrow_forward
- Living organisms play an important role in the recycling of many elements within an ecosystem. Discuss how various types of organisms and their biochemical reactions contribute to the recycling of water in an ecosystem. Discuss both biochemistry and ecology in your answer. Include in your answer at least one way in which human activity has an impact on this nutrient cycle. What are the main reservoirs of water in the biosphere?arrow_forwardEnergy flow or calorific flow in an ecosystem is described as an open system. Critically explain what this means with real life example.arrow_forwardEnergy flows from one trophic level in the food chain to another, at each level only _____% (10, 1, 90) of the energy or biomass is transferred efficiently for use in the next level. The rest is either expended by cellular respiration or lost as feces.arrow_forward
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Energy flow in ecosystem; Author: MooMooMath and Science;https://www.youtube.com/watch?v=5jBV9vJmXZI;License: Standard youtube license