(a) What does a stem (or shoot) do in response to gravity ? What is this phenomenon known as ?
(a) What does a stem (or shoot) do in response to gravity ? What is this phenomenon known as ?
(b) What does a root do in response to light ? What is this phenomenon known as
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(a) Stem grows upward against the direction of gravity; negative geotropism.
(b) Root bends away from light; negative phototropism
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