Only consumers occurs in water zone called

Options

A. Benthic
B. Aphotic
C. Disphotic
D. Both B and C.

Answer

To solve the question "Only consumers occur in water zone called," we need to analyze the different zones of aquatic habitats and identify where consumers are present. Here’s a step-by-step breakdown:

### Step-by-Step Solution:

1. **Identify the Zones of Aquatic Habitats**:
- Aquatic habitats are divided into various zones based on light penetration. The main zones include:
- Littoral Zone
- Limnetic Zone
- Euphotic Zone
- Dysphotic Zone
- Aphotic Zone
- Benthic Zone

2. **Understand the Characteristics of Each Zone**:
- **Littoral Zone**: This is the area close to the shore where light penetrates, allowing for vegetation and various organisms to thrive.
- **Limnetic Zone**: This is the open water area. It can be further divided into:
- **Euphotic Zone**: Receives ample light, supports vegetation and many organisms.
- **Dysphotic Zone**: Light penetration is minimal; vegetation is absent, but some consumers like zooplankton can be found here.
- **Aphotic Zone**: No light penetrates this zone, and it also lacks vegetation. However, some consumers that can survive in low-light conditions are present.
- **Benthic Zone**: This is the bottom of the water body where light does not penetrate. It is primarily inhabited by decomposers.

3. **Determine Where Only Consumers Occur**:
- From the analysis, we see that:
- The **Dysphotic Zone** has consumers (like zooplankton) but no vegetation.
- The **Aphotic Zone** also has consumers but no vegetation.
- The **Benthic Zone** primarily has decomposers, not consumers.

4. **Conclusion**:
- Since the question specifies "only consumers," the correct answer would be the zones where consumers are present without vegetation, which are the **Dysphotic Zone** and the **Aphotic Zone**. Therefore, the answer is **both B and C**.

### Final Answer:
The correct answer is **both B and C** (Dysphotic and Aphotic zones).

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