Which resemble photoautotroph ?

Options

A. Sarcodines
B. Ciliata
C. Zooflagellata
D. Sporozoa.

Answer

To determine which of the given options resembles photoautotrophs, we need to understand what photoautotrophs are and then analyze each option based on their nutritional modes.

### Step-by-Step Solution:

1. **Define Photoautotrophs**:
- Photoautotrophs are organisms that can produce their own food using sunlight through the process of photosynthesis. They convert light energy into chemical energy.

2. **Understand Autotrophs vs. Heterotrophs**:
- Autotrophs are organisms that can synthesize their own food from inorganic substances. In contrast, heterotrophs cannot produce their own food and must consume other organisms or organic matter.

3. **Analyze Each Option**:
- **Sarcodines**:
- Sarcodines, which include amoebas, primarily feed on algae, bacteria, and organic debris. They are heterotrophs because they do not synthesize their own food.
- **Ciliates**:
- Ciliates also feed on smaller organisms like bacteria and algae. They are heterotrophs and do not produce their own food.
- **Zooflagellates**:
- Zooflagellates are also heterotrophic. They cannot synthesize their own food and rely on consuming other organisms.
- **Sporozoa (Apicomplexa)**:
- Sporozoa absorb nutrients from their hosts and do not produce their own food. They are also classified as heterotrophs.

4. **Conclusion**:
- After analyzing all the options, it is clear that none of the listed organisms (sarcodines, ciliates, zooflagellates, sporozoa) resemble photoautotrophs, as all of them are heterotrophs and do not have the ability to produce their own food through photosynthesis.

### Final Answer:
None of the options resemble photoautotrophs.

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