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seif lesson 2

TermDefinition
Tropism a growth response of a plant toward or away from something in its environment
Phototropism the growth response of plants to light
Gravitropism the growth response of plants to gravity
Positive phototropism the growth of plants toward light
Negative gravitropism the growth of roots in the direction of the pull of gravity
Negative gravitropism growing away from the pull of gravity
Thigmotropism aplant's growth response to touch
Solar tracking it’s a phenomena when the flowers of some plants track the sun as sunflowers do
Dormant when plants become inactive due to cold
Long day (short night) plants plants that flower when there are more than a certain number of daylight hours Ex sunflowers, snapdragons, Begonias
Short day (long-night)plants plants that flower when there are fewer than a certain number of daylight hours Ex Poinsettia, Strawberries, and Ragweed
Annual plants plants that germinate, flower, make seeds and die within one growing season, Ex Impatiens, Begonias, and Marigolds
Perennial plants plants that return year after year, Ex Florida paintbrush, Honeysuckle, and other woody plants
Created by: mohamedelhussien
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