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Tropism

Published on Nov 19, 2015

Thomas

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PRESENTATION OUTLINE

1.

TROPISM

THOMAS BROWN
Photo by MightyBoyBrian
2.

Definition
Tropism-A biological phenomenon, indicating growth or turning movement of a biological organism, usually a plant, in response to an environmentalist stimulus.

Photo by Jsome1
3.

GRAVITROPISM

Movement or growth in response of gravity
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4.

CHEMOTROPISM

Movement or growth in response of chemicals
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5.

HYDROTROPISM

Movement or growth in response to water
Photo by Ian Sane
6.

PHOTOTROPISM

Movement or growth in response to lights or colour of lights
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Thomas Brown