Which of the following plant hormones was studied in the 1880s by Charles and Francis Darwin in experiments on phototropism?
A) abscisic acid
B) auxin
C) cytokinin
D) ethylene
E) gibberellin
Correct Answer:
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Q7: Which of the following is a receptor
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Q9: _ is often referred to as the
Q10: A plant's response to an external stimulus
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Q14: Which statement about plant hormones is NOT
Q15: Which of the following plant hormones is
Q16: Which of the following plant hormones breaks
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