__________________ twins start when one sperm fertilizes one egg. They start off being genetically identical, having identical genotypes

This is a genetic question that I don't know :/

Answer: Monozygotic

Psychology

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People who are extremely sensitive to emotional events tend to protect themselves from threatening thoughts through

a. encoding failure. b. repression. c. proactive interference. d. retroactive interference.

Psychology

Motivation is defined as

a. an internal deficiency that energizes behavior. b. the goals which reward our behavior and maintain behavior. c. internal mechanisms which initiate, maintain, direct, and terminate behavior. d. needs associated with impulses for self-actualization.

Psychology