Which of the following is not true of gene activity?
a. Once a gene becomes inactive, it remains inactive.
b. Genes may fluctuate in the amount of protein they code for at different times.
c. A gene may become active at only a certain time of the life cycle.
d. The activity of a gene may be influenced by environmental events.
A
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Sue noticed that whenever she opened the door to the pantry, her dog would come into the kitchen and act hungry by drooling and whining. She thought that because the dog food was stored in the pantry, the sound of the door had become a(n)
a. unconditioned stimulus. b. conditioned stimulus. c. unconditioned response. d. conditioned response. e. neutral stimulus.
According to Lange and Jakubowski, assertion involves
a. deference to others. b. domination of others. c. both of the above d. neither of the above
Explain the importance of trust in Erikson's psychosocial stage approach to personality development.
What will be an ideal response?
Axons that become ________ are insulated and can transmit impulses more efficiently.
A. dorsal B. ionized C. myelinated D. deafferent