Action potentials ____

a. can move up or down an axon, away from or towards the cell body
b. move in a one way direction towards the cell body
c. move in a one way direction away from the cell body
d. can jump from cell to cell
e. occur only once


ANSWER: c

Biology & Microbiology

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Synaptic vesicles discharge their contents by exocytosis at the

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__________ lengthen stems, break dormancy in

seeds and buds, and stimulate flowering. Fill in the blank(s) with the appropriate word(s).

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Dikaryotic cells are denoted as _____ rather than _____ because there are two separate haploid nuclei

a. n; 2n b. 2n; n + n c. n + n; 2n d. n + n; n e. n ? n; n + n

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The Whittaker classification is based upon all of the following EXCEPT

A. type of cell B. level of organization C. type of nutrition D. habitat

Biology & Microbiology