The interaction between two organisms, called commensalism, 

A. always benefits one of the organisms and does not affect the other.
B. does not fit either of the definitions of symbiosis.
C. is illustrated by the relationship between the shark and the fish that it eats.
D. includes all of these statements.


A. always benefits one of the organisms and does not affect the other.

Biology & Microbiology

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The gross output of ATP from glycolysis is ________, whereas the net output of ATP is ________

A) 2; 1 B) 4; 2 C) 4; 1 D) 6; 4 E) 2; 4

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Some dinoflagellates produce toxins. Dinoflagellates are eaten by oysters and oysters are then eaten by birds. Through the process of biomagnification, the highest level of toxins are in ____

Fill in the blank(s) with the appropriate word(s).

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In eukaryotes, very long genes are usually the result of very long __________

a. 5? splicing sites b. promoters c. introns d. exons e. None of the above

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