Recent research has shown that intelligence is dictated by __________.
A. the number of neurons available for such functions as behavior, reasoning, and making plans
B. the number of neurons dedicated to movement and other set functions
C. ratio of larger brain to body size
D. ratio of smaller brain to body size
Answer: A
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There are many jokes out there about the advantage that having opposable thumbs gives human beings over most animals. As your authors note, however, it is not until the age of ____ that children actually start to use their thumbs as part of the grasping process!
a. 3–4 months b. 5–6 months c. 7–8 months d. 9–10 months
While the fields of learning and social psychology look at nature vs. nurture for the development of sexual orientation, evolutionary psychologists believe which of the following?
A. Strong same-sex relationships increase group survival by binding a group together emotionally. B. Having more children decreases the chance of passing on the X chromosome believed to influence sexual orientation in males. C. Strong same sex relationship increases group survival by binding a group together socially due to common interests. D. Having fewer children increases the fertility in women who carry the X chromosome gene.
Cell differentiation occurs roughly how many hours after fertilization?
A. 6 B. 12 C. 24 D. 72
An individual's unique genetic makeup is his or her __________.
A. genotype B. phenotype C. allele D. reaction range