Ovulation typically produces just one egg per cycle. Why does ejaculate contain more than just one sperm?
a. To increase chances of reaching the ovum and to work together to achieve fertilization through combined enzyme production
b. To stimulate ovulation for future egg production
c. To make up the bulk of the semen
d. To store excess sperm in the female body, facilitating fertility in case sexual contact does not occur before the next cycle
Answer: a. To increase chances of reaching the ovum and to work together to achieve fertilization through combined enzyme production
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While attempting to overcome writer’s block, Devin stares at her yellow, green, and white striped journal. When she finally returns to her blank computer screen, she sees a blue, red, and black striped afterimage. Which theory best explains the afterimage that Devin sees??
a. ?negative illusion theory b. ?excitation emission theory c. ?trichromatic theory d. ?opponent process theory
Which of the following is NOT a defense mechanism?
a. Rationalization c. Catharsis b. Displacement d. Reaction formation
A researcher has conducted an experiment in which she assigned all of her students four hours of homework the night before a test; in order to see what effect the extra stress has on test performance
The study is flawed because the researcher did not include a(n) __________ a) control group. b) experimental group. c) independent variable. d) dependent variable.
DSM-5 has been described as functioning like a light switch, which can be "on" or "off." In other words, one either does or does not qualify for a personality disorder diagnosis. Some theorists suggest that degree of symptoms, not symptom absence or presence, is more important and similar to a:
A) flashlight, running on batteries. B) dimmer switch, with the light adjustable from all the way off to all the way on. C) candle, which may be blown out at any time. D) capacitor, which builds up a charge slowly then discharges it all at once.