Current Theory Suggests That Narcotic Analgesics Relieve Pain by Their

question 20

Multiple Choice

Current theory suggests that narcotic analgesics relieve pain by their ability to

• A) mimic the actions of opioid peptides.
• B) counter the effects of the opioid peptides.
• C) activate the release of serotonin in the amygdala.
• D) activate the release of massive amounts of acetylcholine in the basal ganglia.

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Logging Companies

Businesses involved in the cutting down, processing, and selling of trees for timber or pulp.

Biodiversity Hotspot

Biogeographic region that is a significant reservoir of endemic biodiversity and is threatened with continued habitat destruction.

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Localized, native species that are not found anywhere else in the world. Compare with cosmopolitan species.

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The total number of humans currently living on Earth, which is subject to change due to birth, death, and migration rates.