During habituation of the gill-withdrawal reflex in Aplysia, the change in the nervous system takes place at the ____
a. axon hillock of the sensory receptor
b. axon of the motor neuron
c. synapse between the sensory neuron and the motor neuron
d. inhibitory neurons that connect to the motor neuron
c
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Beth normally breast-feeds her baby; however, during the workday Beth's mother watches her baby, and the baby must be fed with a bottle
Beth has noticed that her baby's approach to being bottle-fed is somewhat different than when the baby is being breast-fed. Piaget would say that this is an example of a) scheme. b) Substage 1: Simple reflexes of the sensorimotor stage. c) accommodation. d) assimilation.
Which of the following relationships does NOT follow an equality matching pattern of social exchange?
A) A group of friends goes to dinner and splits the bill evenly. B) Classmates split up the responsibility equally for a group project. C) Members in an extended family take food from other members when they are in need but give food to others when others are in need. D) A pack of wolves kills an animal and each gets the same amount of meat.
Many researchers have evaluated the effectiveness of cooperative learning techniques. Researchers such as Gaertner and his colleagues (1990) believe that one reason why such techniques work is that small,
cooperative learning groups a. break down in-group and out-group categories into a perception of a single group. b. are more likely to follow egalitarian norms. c. provide for contact between members of different racial and ethnic groups. d. are more pleasant and thus reduce academic frustration.
Nicotine ultimately stimulates __________, which are implicated in the reinforcing effects of smoking
a) muscarinic receptors b) dopamine receptors c) GABA receptors d) serotonin receptors