Suppose you plant an angiosperm in a pot, which you leave on your porch, and something knocks the pot over on its side. You find that the stems are bent and facing upward, regardless of the amount of sunlight present. Which response is most likely being witnessed?
A. Thigmotropism
B. Gravitropism
C. Phototropism
D. Photoperiodism
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It is Gravitropism (negative)
Negative gravitropism - In negative gravitropism the shoot of the plant grow in upward direction away from the gravity, which is called as negative gravitropism.
It occurs due to presence of plant hormone auxin, which prohibits elongation of cell in the roots which result in the bending of root down in to the soil.
Negative gravitropism - In negative gravitropism the shoot of the plant grow in upward direction away from the gravity, which is called as negative gravitropism.
It occurs due to presence of plant hormone auxin, which prohibits elongation of cell in the roots which result in the bending of root down in to the soil.
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