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Chapter 46: Q19 (page 1369)
Carbon is present in the atmosphere as ________. a. carbon dioxide b. carbonate ion c. carbon dust d. carbon monoxide
The correct option is a. carbon dioxide .
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What term describes the use of mathematical equations in the modeling of linear aspects of ecosystems?
a. analytical modeling b. simulation modeling c. conceptual modeling d. individual-based modeling
The ability of an ecosystem to return to its equilibrium state after an environmental disturbance is called ________. a. resistance b. restoration c. reformation d. resilience
Pyramids depicting the number of organisms or biomass may be inverted, upright, or even diamond-shaped. Energy pyramids, however, are always upright. Why?
In the English Channel ecosystem, the number of primary producers is smaller than the number of primary consumers because
. the apex consumers have a low turnover rate
. the primary producers have a low turnover rate
. the primary producers have a high turnover rate
. the primary consumers have a high turnover rate
The loss of an apex consumer would impact which trophic level of a food web? a. primary producers b. primary consumers c. secondary consumers d. all of the above .
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