Which statement is true?
A. Hormones control maternal behavior.
B. Organization effects cause maternal behavior.
C. Activational effects cause maternal behavior.
D. Pup exposure can result in maternal behavior.
Answer: D
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Why do people feel lethargy and displeasure a few hours after taking cocaine or amphetamine? a. Prolonged electrical activity leads to short circuits in the brain
b. Neurons have a net loss of dopamine faster than they can replace it. c. Axons build up an excess of sodium ions faster than they can restore normal balance. d. Muscles build up excess levels of lactic acid.
What does the peripheral nervous system do? a. It communicates between the spinal cord and the rest of the body. b. It controls the less important functions of the brain
c. It controls speech, gestures, and other means of communication. d. It controls cognitions, motivations, and emotions.
When are panic disorder and social anxiety disorder though to most commonly have their onset?
A. Infancy B. Childhood C. Adolescence D. Adulthood
A student has just made a pendulum with a small stone and a string. She is trying to figure out whether it is the length of string, the weight of the stone at the end of it,
or both that determine how far the pendulum will swing. In order to be able to solve this problem, the student would have to have reached the ______ stage of cognitive development in Piaget's theory. a. sensory-motor c. concrete-operational b. preoperational d. formal-operational