When assessing one's self-esteem this is stable:

Basic bodily functions such as heart rate, blood pressure, and respiration are regulated by which region of the brain?

a. pons b. medulla c. midbrain d. corpus callosum

When we use the word automobile to refer to a category of transport vehicles, we are using this word as a(n):

a. prototype. b. heuristic. c. concept. d. algorithm.