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Control and Coordination
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12/10/2021 6:25 pm
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(a) What does a root do in response to gravity? What is this phenomenon known as?
(b) What does a stem (or shoot) do in response to light? What is this phenomenon known as?
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12/10/2021 6:25 pm
(a) Root bends downwards in the direction of gravity; positive geotropism.
(b) Stem bends towards the light; positive phototropism.