Q 1.Changes in behavior and cognitive processes over time are studied by ________. 2.Wendy’s mother has blue eyes and her father has brown eyes. The allele for brown eye color is dominant (B) to the allele for blue eye color (b), but Wendy has blue eyes. Therefore, Wendy’s ________ must be ________ and her father’s must be Bb. 3.The myelin sheath is made from ________. 4.A(n) ________ is the electrical signal that typically moves from the neuron’s cell body down the axon to the axon terminals. 5.The two major divisions of the nervous system are the ________ and ________.