| A | B |
|---|
| A plant that needs long periods of darkness before it can bloom | short-day plants |
| A plant that needs short periods of darkness before it can bloom | long-day plants |
| A tropism in which the roots of a plant grow downward, in the direction of gravity | gravitropism |
| The movement of a plant toward or away from light | phototropism |
| The response of a plant to turn toward or away from something in its enviornment | tropism |
| A plant that does not have tissues to transport food and water | nonvascular plant |
| A plant that has tissues that carry water and dissolved materials | vascular plant |
| The vessels in a vascular plant that carry food from the leaves to the other parts of the plant for use and storage | phloem |
| The vessels in a vascular plant that carry water and nutrients from the roots to the leaves | xylem |
