How do fraternal twins develop?
a. When two eggs are fertilized by the same sperm
b. When two sperm fertilize the same egg
c. When a fertilized ovum divides to give two identical fertilized ova
d. When two different sperm fertilize two different ova
e. When a single sperm fertilizes two different ova
d. When two different sperm fertilize two different ova
Psychology
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One critical factor in determining whether a mother's alcohol consumption will have a negative impact on her fetus concerns the mother's
a. previous exposure to syphilis. b. rate of metabolizing alcohol. c. surfactant levels. d. placenta size.
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Which model proposes a direct and indirect path to persuasion?
A. learning model B. McGuire six-step model C. Hovland's four-step model D. heuristic-systematic model
Psychology