A fifty-something mom says, "I can't see well in the dark, and I can't see anything close up." The reason is that, by this age, the _____ of the eye gets cloudier and can't bend well.

Between ages 1 and 4, the most common cause of death is

A) motor vehicle accidents. B) diseases such as cancer and pneumonia. C) child abuse. D) poisoning and drowning accidents.

According to the article Work it Out about electronic exercise feedback, previous research has shown that adult patterns of exercise can be linked to:

(a) genetic factors (b) having physical education in elementary school (c) the number of siblings in a family (d) parental encouragement of children's athletic performance