Biology: Life on Earth (11th Edition)
11th Edition
ISBN: 9780134168296
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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Textbook Question
Chapter 29, Problem 4MC
Net primary production per unit area is likely to be highest in which of the following ecosystems?
a. grasslands
b. deserts
c. temperate deciduous forests
d. tropical rain forests
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The total amount of energy taken up by producers through photosynthesis in an ecosystem is known as...?
Group of answer choices
a. evaporation
b. net primary production
c. standing crop
d. nutrient limitation
e. gross primary production
Gross primary productivity refers to the total
a. energy used by the heterotrophs of the ecosystem in a given period of time
b. energy captured initially by the producers
c. quantity of solar energy reaching a given area of the ecosystem
d. quantity of solar energy available to the ecosystem in a given period of time
e. energy used by the producers for their growth and reproduction
In a community that has 4 trophic levels, what biomass of primary producers is necessary to maintain a tertiary consumer biomass of 1.78 kg/m^2? *
a) 178 kg/m^2
b) 17800 kg/m^2
c) 1780 kg/m^2
d) 17.80 kg/m^2
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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