Wendy and James pretend to fly. They run around the yard with their arms outstretched. James says, "Wendy, flap your arms. It makes you go faster!" They are engaged in __________ play

Which of the following is NOT an example of an adult marker event?

a. Marriage b. First date c. First job d. Childbirth

Assume you're living in a tribal group in Africa and one of the village mothers cannot produce enough breast milk for her infant. Which the following would most likely serve as a substitute for a mother's breast milk?

a. sheep's milk b. goat's milk c. elephant's milk d. dog's milk