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Chapter 46: Q. 12 (page 1369)
The weight of living organisms in an ecosystem at a particular point in time is called: a. energy b. production c. entropy d. biomass
The correct option is d. biomass .
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Which of the following approaches would be the most effective way to reduce greenhouse carbon dioxide?
a. Increase waste deposition into the deep ocean.
b. Plant more environmentally-suitable plants.
c. Increase use of fuel sources that do not produce carbon dioxide as a by-product.
d. Decrease livestock agriculture
Describe what a pyramid of numbers would like if an
ecologist models the relationship between bird
parasites, blue jays, and oak trees in a hectare. Does this
match the energy flow pyramid?
Describe nitrogen fixation and why it is important to agriculture.
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
Decomposers are associated with which class of food web? a. grazing b. detrital c. inverted d. aquatic
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