White blood cells engulfing a bacteria is an example of:

a. parasitosis
b. phagocytocis
c. exocytosis
d. pinocytosis
e. receptor mediated endocytosis


Answer: b. phagocytocis

Biology & Microbiology

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How do ray-finned fish keep from sinking?

a. they are constantly swimming b. they don’t constantly swim but their fins are constantly moving c. they have lungs that are always filled with air d. they have a swim bladder that is filled with gas e. they have a skeleton that is less dense than the surrounding water

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Aldosterone is responsible for increasing the reabsorption of sodium

____________________ Indicate whether the statement is true or false.

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Why are chemotherapeutic agents that work on the peptidoglycan cell wall of bacteria a good choice of drug?

a. Bacteria are especially sensitive to these compounds. b. The drugs also work against DNA gyrase. c. They are less expensive that other chemotherapeutic agents. d. Humans and other animal hosts lack peptidoglycan cell walls.

Biology & Microbiology