Which of the following shows polymorphism?

Options

A. Physalia
B. Trypanosoma
C. Termite
D. All of these

Answer

To determine which of the given options shows polymorphism, we will analyze each option step by step.

### Step-by-Step Solution:

1. **Understanding Polymorphism**:
- Polymorphism refers to the occurrence of different forms or morphs within a species. This can include variations in physical appearance, structure, or function.

2. **Analyzing the First Option: Physalia**:
- Physalia, commonly known as the Portuguese Man o' War, is a colonial organism made up of specialized polyps and medusoids. However, it does not exhibit true polymorphism as seen in organisms with distinct morphological forms.
- **Conclusion**: This option does not show polymorphism.

3. **Analyzing the Second Option: Trypanosoma**:
- Trypanosoma is a genus of unicellular parasitic protozoa. These organisms do not exhibit polymorphism; they have a relatively uniform structure throughout their life cycle.
- **Conclusion**: This option does not show polymorphism.

4. **Analyzing the Third Option: Termite**:
- Termites are social insects that exhibit polymorphism. They have a caste system consisting of workers, soldiers, and reproductive individuals (kings and queens), each with distinct forms and functions.
- **Conclusion**: This option shows polymorphism.

5. **Analyzing the Fourth Option: All of These**:
- Since we have established that Physalia and Trypanosoma do not show polymorphism, this option cannot be correct.
- **Conclusion**: This option does not show polymorphism.

### Final Answer:
The correct answer is **Termite**, as it is the only option that shows polymorphism.