Which one among the following is not a plant hormone?
- A. Gibberellins
- B. Abscisic acid
- C. Auxins
- D. Thyroxine ✓
Correct Answer: D. Thyroxine
Explanation
Thyroxine is a hormone produced by the thyroid gland in humans and other vertebrates; Gibberellins, Abscisic acid, and Auxins are all primary plant hormones.
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