Biology

Question

The illustration to the shows how the hormone auxin causes a plant to grow in response to the sun over time. This response is best classified as which of the following?

(4.5 points)

A. positive geotropism

B. negative hydrotropism

]C. positive phototropism

| D. negative thigmotropism

Answer

C. Positive phototropism

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Positive phototropism is the growth of a plant in response to light. Auxin is a hormone that causes plants to grow in response to the sun...