EBK BIOLOGY
11th Edition
ISBN: 8220101472069
Author: Byers
Publisher: PEARSON
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Textbook Question
Chapter 29, Problem 6RQ
Define detritivore and decomposer and explain their importance in ecosystems.
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Give a) 3 examples of biotic componentsb) 7 examples of abiotic components
Give an example of a single microbial speciescontributing to herbivore nutrition.
“The pyramid of energy is always upright” states that
A)The energy conversion efficiency of herbivores is better than carnivores.
B)The energy conversion efficiency of carnivores is better than herbivores
C)Producers have the lowest energy conversion efficiency
D)Energy conversion efficiency is the same in all trophic levels
Chapter 29 Solutions
EBK BIOLOGY
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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- Decomposers are associated with which class of food web? a. grazing b. detrital c. inverted d. aquaticarrow_forwardDecomposers are associated with which class of food web? grazing detrital inverted aquaticarrow_forwardDefine producer, autotroph, consumer, heterotroph, herbivore, primary consumers, carnivore, secondary consumers, and omnivores. Give examples pleasearrow_forward
- An estimated 1000 kg of plant plankton are needed to produce 100 kg of animal plankton. The animal plankton is in turned consumed by 10 kg of fish, the amount needed by a person to gain 1 kg of body mass. i) explain why the amount of biomass declines at each successive trophic level.arrow_forwardName the apex consumers in the food web shown here.arrow_forwardIn the trophic structure, autotrophs are living organisms that: Are at the top of the chain, referred to as tertiary producers. Photosynthetic organisms that produce their own energy Organisms that receive their energy by consuming producers such as plants Help to decompose the remains of dead organismsarrow_forward
- Explain the concept of Photostasis and give an example of an abiotic factor causing an energetic imbalance.arrow_forwardIdentify an abiotic change in the environment that would cause a significant shift in this food web. Discuss what the likely effects would be and explain why they would occur.arrow_forwardIncrease in concentration of the toxicant at successive trophic levels is known as what?arrow_forward
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