1.)Plants exhibit different types of responses to events that occur in the environment. Which of the following is an example of a nastic response?
 a.
 roots growing downward
 b.
 vine tendrils growing around a fence
 c.
 a Venus Flytrap snapping shut in response to touch
 d.
 a house plant growing toward a window
 2.)Gibberellins cause plant growth by stimulating ____________________.
 a.
 mitosis
 c.
 the storage of starch
 b.
 cell elongation
 d.
 photosynthesis