| Term | Definition |
|---|
| food | A tree that loses its leaves in the fall survives during the winter by living on stored ____________. |
| adaptations | A cactus that lives in the dry desert has _______________ to conserve water. |
| stimulus | Anything in the environment that causes a plant to react is called a(n) ______________. |
| tropism | The reaction of plants to light, gravity, or water is called a(n) ___________. |
| chemicals | In his experiment, Charles Darwin found that ______________ in the tips of plants caused the shoots to bend. |
| gravity | A plant responds to ______________ in two ways--the roots grow toward the ground and the stems grow upward. |
| upward | A plant reponds to gravity in two ways--the roots grow toward the ground and the stems grow ____________. |
Combine with other sets
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