Delay in development periods of unfavorable conditions and gets inactiveness is called

Options

A. Menopause
B. Diapause
C. Hibernation
D. Aestivation

Answer

**Step-by-Step Solution:**

1. **Understanding the Question:**
The question asks for the term that describes a delay in development during unfavorable conditions, leading to a state of inactivity.

2. **Analyzing the Options:**
The options provided are:
- A) Menopause
- B) Diapause
- C) Hibernation
- D) Estivation

3. **Evaluating Each Option:**
- **Option A: Menopause**
- Menopause refers to the end of the menstrual cycle in females and is not related to developmental delays in organisms. Therefore, this option is incorrect.

- **Option B: Diapause**
- Diapause is a state of suspended development that occurs in response to unfavorable environmental conditions. It is characterized by a delay in the developmental process of organisms, particularly seen in arthropods and certain fish. This option fits the description in the question and is the correct answer.

- **Option C: Hibernation**
- Hibernation is a state of inactivity or dormancy that occurs during winter months, allowing organisms to conserve energy. While it involves inactivity, it is not specifically a developmental delay, making this option incorrect.

- **Option D: Estivation**
- Estivation is similar to hibernation but occurs during hot or dry conditions in summer. It also refers to a state of dormancy but does not specifically relate to developmental delay, thus making this option incorrect.

4. **Conclusion:**
After evaluating all options, the correct answer to the question is **B) Diapause**, as it specifically refers to the delay in development during unfavorable conditions.