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Menstrual cycle occurs in...

Menstrual cycle occurs in

A

Female primates

B

Human females

C

Mammalian females

D

Rabbit

Text Solution

AI Generated Solution

The correct Answer is:
**Step-by-Step Text Solution:** 1. **Understanding the Menstrual Cycle**: The menstrual cycle is a monthly cycle that occurs in female primates, including humans. It typically lasts around 28 days and involves the preparation of the uterus for potential pregnancy. 2. **Classification of Mammals**: Mammals are classified into two main groups: primates and non-primates. Primates include species such as humans, monkeys, and apes, while non-primates include other mammals like dogs, cats, and horses. 3. **Menstrual Cycle in Primates**: In primates, the menstrual cycle occurs when the endometrium (the inner lining of the uterus) thickens in preparation for a fertilized egg. If fertilization does not occur, the endometrium is shed, resulting in menstrual bleeding. 4. **Non-Primate Mammals**: In contrast, non-primate mammals do not undergo a menstrual cycle. Instead, they experience an estrous cycle, where the endometrium is reabsorbed if fertilization does not take place. 5. **Analyzing the Options**: The question provides several options: - Female primates - Human female - Mammalian female - Rabbit Among these, "female primates" is the most accurate choice since it encompasses all primates that experience a menstrual cycle, including humans. 6. **Conclusion**: Therefore, the correct answer to the question "Menstrual cycle occurs in" is **female primates**. ---
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