Which one of the following depresses brain activity and produces feelings of calmness, relaxation, and drowsiness?
Correct answer: B. Valium
- A. Morphine
- B. Valium
- C. Amphetamines
- D. Hashish
Explanation
Valium is a benzodiazepine (sedative) that gives a feeling of relaxation, calmness, or drowsiness in the body. Morphine is the main opium alkaloid that depresses the respiratory center and contributes to the fall in blood pressure. Amphetamines are synthetic drugs and are stimulant in nature. Hashish is a hallucinogen.
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About Biodiversity and Variety of Life
Biological classification uses taxonomic ranks, binomial nomenclature and shared characteristics to organize life into kingdoms. The major groups include prokaryotes, protists, fungi, plants and animals, with comparisons based on cell type, cell wall, nutrition, body organization, reproduction and evolutionary relationships; prokaryotes lack a membrane-bound nucleus.
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