An experimenter manipulates one variable to see how it affects a second variable. The one the experimenter manipulates is the ___________ variable

According to the transactional model, parents alone impact children's behavior

a. True b. False Indicate whether the statement is true or false

In fruit flies, per and tim proteins: a. inhibit the clock protein

b. promote the production of the clock protein. c. are inhibited by the clock protein. d. inhibit the production of each other and the clock protein.