Abnormal cell division that does not pose a threat to surrounding tissues is termed _____

a. malignant
b. benign
c. metastatic
d. carcinogenic
e. repressed


ANSWER: b

Biology & Microbiology

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In skeletal muscle contraction, the neurotransmitter ____ is released at the axon terminal of the neuromuscular

junction to trigger an action potential in the muscle cell.

a. troponin b. Ca2+ c. tropomyosin d. ATP e. acetylcholine

Biology & Microbiology

Classical conditioning differs from operant conditioning in that classical conditioning associates ____

while operant conditioning links ____.

a. two phenomena that are usually unrelated; a voluntary activity with a reward b. a response with punishment; a response with a reward c. instinctive behaviors with punishments; learned behaviors with rewards d. a voluntary activity with a reward; two phenomena that are usually unrelated e. learned behaviors with rewards; instinctive behaviors with rewards

Biology & Microbiology

The pain of heartburn is an example of a ____

a. somatic sensation c. sensory adaptation b. visceral sensation d. spinal reflex

Biology & Microbiology

The subdividing of some category of similar

resources in a way that allows competing species to exist is

a. competitive exclusion. b. social parasitism. c. predation. d. mimicry. e. resource partitioning

Biology & Microbiology