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Declan’s 3.5
mine notecards
| Question | Answer |
|---|---|
| Tropism | a plants growth toward the stimulus or away from it |
| hormone | chemical that affects |
| photoperiodism | day length |
| Critical night length | number of hours of darkness that determines whether or not a plant will flower |
| dormancy | period when organism stops growing |
| list three stimuli that produce plant responses | Touch, gravity, and light |
| Give An example of both positive and negative tropism | a plant’s growth respond toward or away from a stimulus is called a tropism |
| describe what triggers a plant to flower | day length, plant maturity, temperature |
| Why dormancy is important | Helps plants survive under freezing temperatures and the lack of water |