The stage of suspended development shown by zooplanktons is called:

Options

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

Answer

To solve the question regarding the stage of suspended development shown by zooplankton, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question is asking for the specific term that describes a stage of suspended development in zooplankton.

2. **Identify Key Terms**: The key term here is "suspended development," which refers to a state where the organism is not actively growing or reproducing but is in a kind of dormancy.

3. **Consider Possible Answers**: The options given in the video transcript include:
- Hibernation
- Astivation
- Migration
- Diapause

4. **Analyze Each Option**:
- **Hibernation**: This is a state of inactivity that some animals enter during cold conditions. It does not apply to zooplankton.
- **Astivation**: This is similar to hibernation but occurs during hot or dry conditions. Again, this does not pertain to zooplankton.
- **Migration**: This refers to the movement of animals from one habitat to another, which is not a state of suspended development.
- **Diapause**: This is a period of suspended development that allows organisms to survive unfavorable environmental conditions. This term is specifically applicable to zooplankton.

5. **Conclusion**: Based on the analysis, the correct answer is **Diapause**. This term accurately describes the state of suspended development in zooplankton.

### Final Answer:
The stage of suspended development shown by zooplankton is called **Diapause**.

---