Which is an example of an internal stimulus? a. a sudden change of air temperature b. an artificial light that attracts insects c. an increase in the amount of water available to a plant d. a decrease in oxygen levels in the blood during exercise

If one of your friends tries to get you to stay out later than your curfew, you should: a. go along with it because your parents are too strict anyway. b. yell at them about what a stupid idea it is. c. say you don't want to, but if they insist, you stay. d. tell them that you're going home, but they can stay out if they want to.

The best way to get vitamins and minerals is to  a.  eat more fruits than vegetables.    b.  drink as much fruit juice as possible.    c.  take vitamin supplements.    d.  eat a balanced diet.

Every person’s body is different, a. but every vehicle’s cabin layout is the same b. and every vehicle’s cabin layout is different c. making some people automatically safe drivers d. making some people better fit to drive a sedan than a coupe