Saprobic fungi derive nutrients from :

Options

A. non-living organic matter
B. root hairs
C. living organisms
D. both (a) and (b)

Explanation

**Step-by-Step Solution:**

1. **Understanding Saprobic Fungi**:
- Saprobic fungi are a type of fungi that play a crucial role in the ecosystem by breaking down dead and decaying organic matter.

2. **Identifying Nutrient Sources**:
- These fungi derive their nutrients primarily from non-living organic matter. This includes materials such as dead plants, animals, and other organic debris.

3. **Evaluating the Options**:
- The question provides four options:
- A) Non-living organic matter
- B) Root hairs
- C) Living organisms
- D) Both A and B
- Among these, option A (non-living organic matter) is the most accurate description of what saprobic fungi consume.

4. **Eliminating Incorrect Options**:
- Option B (root hairs) is incorrect because root hairs are part of living plant roots and not a source of nutrients for saprobic fungi.
- Option C (living organisms) is also incorrect as saprobic fungi do not derive nutrients from living organisms.
- Option D (both A and B) is incorrect since option B is not a valid source for saprobic fungi.

5. **Conclusion**:
- Therefore, the correct answer is A) Non-living organic matter, as this is the primary source of nutrients for saprobic fungi.

**Final Answer**: Non-living organic matter

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