With the __________ method, identical and fraternal twins are studied in order to determine the heritability of a characteristic.
a. dizygotic
b. homologous
c. Mendelian
d. twin
Answer: d. twin
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Jeff observed a quick succession of cars moving together on the road. His first thought was that they were all a part of a convoy of some sort. Which law of perceptual organization best explains Jeff's assumption?
A) The law of unity B) The law of similarity C) The law of continuity D) The law of common fate
In an experiment, researchers exposed half of the participants to loud noise during a memory-encoding task. The room was quiet for the other half of the participants. Later, all participants were given a memory test and the number of correct items recalled was obtained for each participant. The participants who encoded information in the noisy room constitute the:
A) independent variable. B) dependent variable. C) experimental group. D) control group.
Feedback from sensory receptors in the legs is primarily responsible for a competitive runner's:
A) decision as to when is the best time to begin running faster. B) ability to maintain her balance while running. C) ability to hold a constant gaze while in motion. D) ability to become more efficient with her stride with practice.
According to evolutionary theorists, females prefer to mate with males who are a few years older than themselves
Indicate whether the statement is true or false