Twin studies and adoption studies are methods to discover the role of __________ factors in the development of psychological disorders

Dizygotic twins are produced when:

two ova are fertilized by a single sperm. one ovum is fertilized by one sperm and then splits to form two clusters. two ova are fertilized by two different sperm at roughly the same time. one ovum is fertilized by two sperm and then splits to form two clusters.

Consistently stagehogging sends the message that the sender's message isn't interesting or important

a. True b. False