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In a detritus food chain, decomposition ...

In a detritus food chain, decomposition of detritus depends upon all, except

A

Oxygen non-availability

B

Chemical composition of detritus

C

temperature and soil moisture

D

soil microbes

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the factors affecting the decomposition of detritus in a detritus food chain, we will analyze each option provided in the question. ### Step-by-Step Solution: 1. **Understanding the Detritus Food Chain**: - A detritus food chain is a type of food chain that begins with detritus, which consists of decomposing organic matter. Decomposition is a crucial process in this chain as it recycles nutrients back into the ecosystem. 2. **Analyzing the Options**: - The options given are: - A) Oxygen - B) Non-availability - C) Chemical composition of detritus - D) Temperature and soil moisture - E) Soil microbes 3. **Evaluating Each Option**: - **A) Oxygen**: Oxygen is essential for aerobic decomposition. Without it, decomposition slows down significantly. - **B) Non-availability**: This refers to the lack of oxygen. If oxygen is not available, decomposition cannot occur effectively, making this option a candidate for the exception. - **C) Chemical composition of detritus**: The chemical makeup of detritus (e.g., nitrogen content) influences the rate of decomposition. Rich nitrogen content speeds up decomposition, while high lignin content slows it down. - **D) Temperature and soil moisture**: Both temperature and moisture are critical for decomposition. Optimal conditions enhance microbial activity, which is necessary for breaking down detritus. - **E) Soil microbes**: Microbes, including bacteria and fungi, are the primary decomposers. Their presence is vital for the decomposition process. 4. **Identifying the Correct Answer**: - Since the question asks for the factor that does not affect decomposition, we see that "non-availability" of oxygen (option B) is indeed the correct answer. Decomposition requires oxygen, and without it, the process cannot occur effectively. ### Conclusion: The correct answer is **B) Non-availability**.
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