Which of the following is a cellular response to signal transduction?
A. a change in the proteins found in the
cytosol
B. the release of more signal molecules
C. a change in the activity of an enzyme
D. All of these answer options are correct.
D
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Studies of sex chromosome aneuploidy reveal that ____ necessary for survival
a. the X chromosome is not b. the Y chromosome is not c. two copies of the X chromosome are d. two copies of the Y chromosome are e. at least one copy of both the X and the Y chromosome is
Plankton that can be caught with a standard plankton net are called:
a. nanoplankton. b. picoplankton. c. microplankton. d. megaplankton. e. gigaplankton.
When one microbe's metabolic activities create favorable conditions for another microorganism, this is referred to as (competition/cooperation/facilitation).
Fill in the blank(s) with the appropriate word(s).
Two species of salamander have similar ranges, but one breeds from January to March, while the second one breeds from March to May. This is an example of
A. habitat isolation. B. behavioral isolation. C. mechanical isolation. D. gametic isolation. E. temporal isolation.