The central nervous system is made up of the

The central nervous system is made up of the
 
  a. brain and spinal cord.
 b. brain only.
 c. spinal cord only.
 d. nerves leading to and from the brain.

Question 2

Epigenetics refers to the process of cellular material influencing traits by
 
  a. Creating mutations in the genome.
 b. Inheriting mutations from an individual's parents.
 c. Activating the endocrine system when an individual encounters stressful events.
  d. Turning on or off genes from outside of the genome itself.

Question 3

Some of the most recent research studies regarding genetic versus environmental causes of disorders in animals and humans have suggested
 
  a. genetic influences are greater for animals than for humans because humans learn more from their environments.
  b. genetics and the environment share equal roles in the development of all psychological traits.
 c. genetic influences may have been understated by previous.
  d. genetic influences may have been overstated by previous studies.

Question 4

Lee has inherited a physiological trait that makes her more prone to anxiety. When she was 11, she was stung by a wasp while playing outside. If Lee were to develop a phobia of wasps, the model that would probably best explain the cause of her phobia is the ________ model
 
  a. diathesis-stress
 b. biological
 c. gene-environment correlation model
  d. interpersonal