Density-independent factors that limit population growth include ____
a. parasites
b. temperature
c. disease
d. competition
e. predation
ANSWER: b
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The ____ method is often used to estimate the population size of mobile animals that live within a restricted geographic
range.
a. mark-release-recapture b. direct count c. extrapolation of counts from quadrants to entire population d. plot e. indirect count
Four of the five answers below are related as members of the same group. Select the exception
a. lactose b. maltose c. sucrose d. table sugar e. glucose
What did the first fishes probably lack?
A) eyes B) jaws C) gills D) fins
Which of the following describes the mechanism of action for zidovudine?
A. It prevents the viral DNA from integrating in the host chromosome. B. It inhibits the assembly of HIV particles. C. It is a thymine analog that interferes with the synthesis of DNA from the HIV RNA template. D. It inhibits fusion of the viral envelope and host cell envelope. E. It directly binds to reverse transcriptase and prevents reverse transcription of HIV RNA.