Under times of great stress or shock, which of the following neurotransmitters interferes with the perception of pain?
A) endocannabinoids
B) GABA
C) catecholamines
D) enkephalins
E) acetylcholine
Answer: D
Biology & Microbiology
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The first part of the scientific name of several species in the same genus will all be the same.
a. true b. false
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The herbicides (weed killers) 2,4-D and 2,4,5-T are examples of synthetic:a
abscisic acid. b. auxins. c. cytokinins. d. ethylene. e. gibberellins.
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Only high-energy light can penetrate the ocean and reach photosynthetic organisms in coral reefs. What color light would you predict these organisms use?
A. Red B. Yellow C. Blue D. Orange
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Model for the plasma membrane based on the changing location and pattern of protein molecules in a fluid phospholipid bilayer.
What will be an ideal response?
Biology & Microbiology