The function of lordosis in a female mammal is to __________.
A. prepare the female for a rapid escape response from the male
B. expose the male rat to vaginal pheromones
C. prevent sexual contact with the male rat
D. facilitate intromission by the male rat
Answer: D
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Inhibitory synapses on a neuron ____
a. hyperpolarize the postsynaptic cell b. weaken the cell's polarization c. increase the probability of an action potential d. move the potential closer to the cell's threshold
A U-shaped pattern is an example of a
a. curvilinear relationship. b. non-relationship. c. positive relationship. d. negative relationship.
From the twenties to the sixties,
A) spatial memory suffers much less than verbal memory. B) the amount of information people can retain in working memory diminishes. C) adults rehearse more than they did in early adulthood. D) the speed at which adults can repeat information to themselves increases.
Scientists have discovered that carrying the sickle cell gene raises immunity to __________, which is a common disease in West Africa
a) hemophilia b) blood pressure c) malaria d) anemia