Which of the following is a type of reproductive
isolating mechanism?
a. temporal isolation
b. mechanical isolation
c. behavioral isolation
d. ecological isolation
e. all of these
Answer: e
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Viruses are not considered as alive, yet they share with living cells the ability to
A. evolve. B. respond to stimuli. C. metabolize food. D. reproduce on their own. E. produce cell membranes.
________ was the first to isolate a root nodule bacterium capable of nitrogen fixation.
Fill in the blank(s) with the appropriate word(s).
Proteomics is the study of all proteins that are expressed by an organism, whereas genomics refers to the study of the organism's entire genome, not simply the protein-coding regions.
Answer the following statement true (T) or false (F)
The primitive Earth's atmosphere contained gases produced by
A. outgassing by the Earth's interior. B. gravitational energy. C. radioactivity. D. All of the choices are true.