Allergies occur when

A) too much complement is released into the blood.
B) antibodies malfunction and attack "self" cells.
C) mast cells release histamine in response to harmless substances.
D) foreign MHC proteins trigger an immune response.


C

Biology & Microbiology

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Transfection is:

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Ecdysone inhibitors could be used as insecticides

Indicate whether the statement is true or false.

Biology & Microbiology

Cells take in and get rid of substances in various ways. Which process requires the expenditure of energy?

A) passive transport B) diffusion C) active transport D) osmosis

Biology & Microbiology