When Charissa was a young child, she stepped on a bee and was stung. Since that time, she has been terrified of flying insects and runs away if she sees any

What are the two components of the central nervous system?

a. brain and spinal cord b. somatic and autonomic systems c. corpus callosum and cerebellum d. sympathetic and parasympathetic systems

Through continued usage, an individual's brain may adapt to compensate for the effects of a drug. This adaptation is called:

A. dependence. B. withdrawal. C. tolerance. D. alteration.