When different forms of a trait are becoming more or
less common over successive generations, what is
taking place?
a. natural selection
b. adaptation
c. survival of the fittest
d. evolution
e. none of these
Answer: d
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Lack of vitamin ____ leads to rickets
a. a b. b c. c d. d e. e
In retroviruses, the integrated phage genome is known as which of the following?
A) prophage B) provirus C) virioid D) virion
The glycocalyx of a eukaryotic cell performs all of the following functions EXCEPT
A) protection against dehydration. B) anchoring cells to each other. C) cellular recognition and communication. D) transfer of genetic material between cells. E) strengthening the cell surface.
The two main processes that return water to the atmosphere are evaporation and:
A) runoff. B) transpiration. C) aquifer containment. D) leaching.