Voltage-gated ion channels open when a protein binds to the receptor.

a. true
b. false


Answer: b. false

Biology & Microbiology

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Both anorexics and bulimics tend to have:

(a) distorted body images (b) the ability to maintain strict diets (c) excessive weight gain (d) paranoid schizophrenia

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Plants have special groups of self-renewing cells called

A. root cells. B. meristems. C. cast cells. D. chloroplasts.

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Cell deteriorations due to viral infections are known as

a) transformations. b) biosynthesis. c) cytopathic effects. d) plaques.

Biology & Microbiology

Lichens are adversely affected by

A. sunlight. B. humidity. C. sexual reproduction of the fungal partner. D. asexual reproduction of the photosynthetic partner. E. pollution.

Biology & Microbiology