Osmotrophs are

Options

A. Bacteria
B. Fungi
C. Both A and B
D. Algae

Answer

To answer the question "Osmotrophs are:", we need to understand what osmotrophy means and identify which organisms fit this definition.

### Step-by-Step Solution:

1. **Define Osmotrophy**:
- Osmotrophy refers to the process by which certain organisms obtain nutrients by absorbing dissolved organic compounds from their environment through osmosis.

2. **Identify Osmotrophic Organisms**:
- Organisms that perform osmotrophy are known as osmotrophs. These organisms typically absorb nutrients from their surroundings rather than ingesting solid food.

3. **Consider the Options**:
- The options provided are:
a) Bacteria
b) Fungi
c) Both A and B
d) Algae

4. **Analyze Each Option**:
- **Bacteria**: Many bacteria are osmotrophic, as they can absorb dissolved nutrients from their environment.
- **Fungi**: Fungi also absorb nutrients through osmosis, making them osmotrophic as well.
- **Both A and B**: Since both bacteria and fungi are osmotrophs, this option is valid.
- **Algae**: While some algae can absorb nutrients, they are not typically classified as osmotrophs in the same way that bacteria and fungi are.

5. **Conclusion**:
- Since both bacteria and fungi are examples of osmotrophs, the correct answer is **c) Both A and B**.

### Final Answer:
**Osmotrophs are organisms that obtain nutrients through osmosis, and both bacteria and fungi are examples of osmotrophs. Therefore, the correct answer is c) Both A and B.**