_ and cytokinins stimulates fruit ripening.
Correct answer: C. Option C: Ethylene
- A. Option A: Cytokinins
- B. Option B: Abscisic acid
- C. Option C: Ethylene
- D. Option D: Auxin
Explanation
Ethylene is the correct answer because it is the primary plant hormone responsible for promoting fruit ripening. It accelerates the changes in fruit texture, color, and flavor, making it edible. While cytokinins, abscisic acid, and auxin have important roles in plant growth and development, they do not specifically trigger the ripening process like ethylene does.
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Human reproduction covers the male and female reproductive organs, gamete formation, fertilization, implantation and hormonal regulation. The menstrual cycle includes ovarian and uterine changes controlled by pituitary and ovarian hormones, while sexually transmitted diseases are studied through their causes, transmission, symptoms, prevention and effects on fertility.
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