Question

Menstrual cycle is found in .......

• A. monkeys, apes and human beings.
• B. monkeys and apes.
• C. apes and human beings.
• D. only human beings.

Hint:

Menstrual cycles are common in primates, including monkeys, apes, and humans.

Answer 1

The Correct Option is A

Step 1: Understanding the menstrual cycle.
The menstrual cycle is a characteristic of primates (monkeys, apes) and humans, where it refers to the regular cycle of physiological changes in the female reproductive system.
Step 2: Analyzing the options.
(A) monkeys, apes and human beings: Correct — All these species experience menstrual cycles as part of their reproductive physiology.
(B) monkeys and apes: Incorrect — While monkeys and apes experience menstrual cycles, human beings also share this characteristic.
(C) apes and human beings: Incorrect — The menstrual cycle is also present in monkeys, not just apes and humans.
(D) only human beings: Incorrect — This excludes monkeys and apes, which also experience menstrual cycles.
Step 3: Conclusion.
The correct answer is (A) monkeys, apes and human beings.