Capacity of amphibians to change colour is called

Options

A. Synchronous
B. Metachronous
C. Metachrosis
D. None of these

Answer

To answer the question regarding the capacity of amphibians to change color, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for the term that describes the ability of amphibians to change their color.

2. **Analyzing the Options**: The options provided are:
- A) Synchronous
- B) Metachronous
- C) Metacrosses
- D) None of these

3. **Defining the Terms**:
- **Synchronous**: Refers to events occurring at the same time. This does not relate to color change.
- **Metachronous**: Refers to events occurring in a sequential manner. This is also unrelated to color change.
- **Metacrosses**: This term is associated with the ability of certain amphibians to change color due to special pigments that can expand and reflect different colors of light.
- **None of these**: This option suggests that none of the previous terms are correct.

4. **Identifying the Correct Answer**: Based on the definitions, the correct term that describes the capacity of amphibians to change color is **Metacrosses**. This is because it specifically relates to the physiological process involving pigments in amphibians like tree frogs that allow them to change their appearance.

5. **Conclusion**: Therefore, the capacity of amphibians to change color is called **Metacrosses**.