Algae differ from fungi in being

Options

A. heterotrophic
B. autotrophic
C. parasitic
D. sporophytic.

Explanation

**Step-by-Step Solution:**

1. **Understanding Algae and Fungi**:
- Algae and fungi are both types of organisms, but they belong to different groups. Algae are primarily aquatic and can perform photosynthesis, while fungi are usually terrestrial and do not perform photosynthesis.

2. **Photosynthesis and Chlorophyll**:
- Algae contain chlorophyll, which allows them to capture light energy and convert it into chemical energy through photosynthesis. This process makes them autotrophic, meaning they can produce their own food.

3. **Nutritional Modes**:
- Fungi, on the other hand, lack chlorophyll and cannot perform photosynthesis. They are heterotrophic, meaning they cannot produce their own food and must obtain nutrients from other sources.

4. **Types of Heterotrophy in Fungi**:
- Fungi can be further classified based on their nutritional modes:
- **Saprophytic**: They absorb nutrients from dead and decaying organic matter.
- **Parasitic**: They derive nutrients from living organisms, often harming them in the process.

5. **Conclusion**:
- Therefore, the main difference is that algae are autotrophic (can make their own food through photosynthesis), while fungi are heterotrophic (cannot make their own food and depend on other organisms).

**Final Answer**: Algae differ from fungi in being autotrophic.

---