Protozoans are an important part of the food chain ingesting large numbers of
A. fish.
B. bacteria and algae.
C. shellfish.
D. other protozoans.
B
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Kinetic proofreading allows an enzyme to discriminate between two substrates by:
A. using a binding pocket of a specific size. B. using a multistep reaction and energy to reverse reactions. C. using a binding pocket of a specific shape. D. increasing the rate of the single chemical step of the reaction.
A species that has population levels so low it
faces extinction in all or part of its range is designated as a. riparian. b. endemic. c. endangered. d. fragmented. e. an indicator
Conduction
What will be an ideal response?
What can be said about peptide hormones?
A. They bind membrane receptors to elicit a response on target cells. B. They are water-soluble and bind membrane receptors to elicit a response on target cells. C. They are lipid-soluble. D. They are generally water-soluble. E. They bind intracellular receptors to elicit a response on target cells.