read the following statements and choose the option which is the set of correct statements.
(a) sun is the source of energy for grazing food chains.
(b) in aquatic ecosystem, DFC is the major conduit of energy flow
(c) some organism of DFC prey to GFC animals.
(d) ecosystem can support unlimited number of trophic levels.
(e) waves provide stability to the ecosystem

Options

A. b,c and e
B. a, b, c and d
C. a, c and e
D. all except b and c

Answer

To solve the question, we need to analyze each statement provided and determine which ones are correct.

### Step-by-Step Solution:

1. **Statement (a)**: "Sun is the source of energy for grazing food chains."
- **Analysis**: This statement is **correct**. The sun provides energy through photosynthesis, which is the basis for the grazing food chain, starting with producers (green plants).

2. **Statement (b)**: "In aquatic ecosystem, DFC is the major conduit of energy flow."
- **Analysis**: This statement is **incorrect**. In aquatic ecosystems, the Grazing Food Chain (GFC) is typically the major conduit of energy flow, not the Detrital Food Chain (DFC).

3. **Statement (c)**: "Some organisms of DFC prey on GFC animals."
- **Analysis**: This statement is **correct**. Some organisms in the Detrital Food Chain can indeed prey on animals from the Grazing Food Chain.

4. **Statement (d)**: "Ecosystem can support unlimited number of trophic levels."
- **Analysis**: This statement is **incorrect**. Ecosystems can only support a limited number of trophic levels due to energy loss at each level (10% rule).

5. **Statement (e)**: "Waves provide stability to the ecosystem."
- **Analysis**: This statement is **correct**. Waves can help maintain stability in aquatic ecosystems by mixing nutrients and supporting various life forms.

### Conclusion:
Based on the analysis:
- Correct statements are (a), (c), and (e).
- Incorrect statements are (b) and (d).

### Final Answer:
The correct set of statements is: **(a), (c), and (e)**.