Assimilation efficiency is the ratio of ____
a. energy content of food consumed to the energy content of food available
b. energy absorbed from consumed food to the food’s total energy content
c. energy content of new tissue produced to the energy assimilated from food
d. net productivity at one trophic level to the trophic level below
e. producers to consumers
ANSWER: b
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Evaluate the following statement about heat: Heat is released in all energy conversion processes as a byproduct.
A. False, heat is released in most but not all energy conversion processes. B. False, heat is never released as a byproduct. C. True. D. False, heat is released as a byproduct only in a few energy conversion processes.
What distribution pattern is the most common
in the natural world? a. random b. uniform c. clumped d. stratified or layered e. homogeneous
Secondary succession is likely to occur in
a. a burned forest. b. a shallow lake. c. an abandoned field. d. a burned forest and a shallow lake. e. a burned forest, a shallow lake, and an abandoned field
The difference between the classic complement systems and alternative complements is:
a) How C3 convertase is activated b) How the membrane attack complex is formed c) One system promotes inflammation and the other does not d) One system opsonizes pathogens and the other does not