What does research say about teenagers and physical fitness? a
Females are more concerned about physical fitness than males
b
Many teenagers are in poor physical condition
c
Most teenagers are physically fit
d
Teens are in better shape than their parents were at the same age

Most of the world's booming population growth is occurring in countries that arenot highly industrialized. the high birthrates in these countries often result inlower standards of living. which of the following would be the best solution tothis global economic problem? o a. encouraging developing countries to participate in global tradeob. creating an international seed bank to protect biodiversityoc. forming strict regulations on greenhouse gas emissionso d. establishing international agreements to prevent overfishingis it a b c d

During the first month of development, how many layers of cells make up the embryo? a. 1 b. 2 c. 3 d. 4

According to harry harlow’s experiment what behavior did the baby monkeys exhibit when the cloth mother was present? a. they cowered in the corner of the room. b. they were willing to explore the room. c. they sought refuge with the wire mother. d. he behaved aggressively toward the cloth mother.