A key function of glial cells is to
A) provide nutrition to the brain.
B) remove physical debris from the blood.
C)secrete cerebrospinal fluid..
D) insulate a nerve cell from other nerve cells.
E) slow down conduction of action potentials.
Answer: D
Rationale: A key function of glial cells is to insulate a nerve cell from other nerve cells.
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Jada is a Republican, but she is currently working for a Democratic candidate. As a result of ________, Jada may shift her political views
a. scapegoating b. prejudice c. discrimination d. a self-serving bias e. cognitive dissonance
The sex of a new organism is determined by whether
A) the X and Y chromosomes separate into sperm cells or ovum. B) an X-bearing sperm or a Y-bearing sperm fertilizes the ovum. C) the sperm fertilizes an X-bearing egg or a Y-bearing egg. D) the ovum is carrying an X chromosome or a Y chromosome.