The concept of childhood as a special period did not exist until the __________ century

In a large survey among college-aged men and women, it was found that a. about 75 percent of the respondents said that they had gone on a binge of heavy drinking once in the preceding two weeks. b. there was no relationship between frequency of drinking and grades

c. students with a grade-point average of "A" had no more than one drink per week. d. "D" and "F" students averaged 11 alcoholic drinks per week.

Presynaptic facilitation occurs at a synapse between a presynaptic axon and a postsynaptic dendrite, and leads to more frequent signaling by the postsynaptic cell

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