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Biology 12 Online
OpenStudy (anonymous):

a corn seed is germinated in the dark. The root growns in a downward direcion. This shows the effect of: a. positive gravitropism b. negative gravitropism c. positive phototropism d. negative phototropism plz explain why you chose your answer thx :D

OpenStudy (anonymous):

(a) - because the gravity direction and root growth are in the same . So it is positive gravitropism.

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