________ is a protective coating of fat and protein that wraps around an axon.
A. A myelin sheath
B. A glial cell
C. The basal lamina
D. The sarcoplasmic reticulum
Answer: A
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Why does the metabolic rate decline as we age?
A. Metabolic enzymes begin to degrade. B. More calories must be kept on reserve to support aging body tissues. C. Fat burns fewer calories than muscle. D. Activity levels significantly decline.
Today, Diane has been unable to reach several friends in order to go to a movie with her. She is feeling _____ loneliness
a. transient c. chronic b. transitional d. social
Fetal alcohol syndrome is characterized by
a. low birth weight, a small head, and bodily defects. b. an increased risk of developing albinism. c. genetic defects. d. the newborn having fluid on the brain and slight paralysis of the muscles of the extremities.
Line graphs should not be used to describe____________ data
a. categorical b. continuous c. quantitative d. frequency