Plant succession occurring in a water body is called .

Options

A. Hydrosere
B. Psammosere
C. Lithosere
D. Xerosere

Answer

To solve the question "Plant succession occurring in a water body is called," we will analyze the options provided and determine the correct answer step by step.

### Step 1: Understand the Concept of Plant Succession
- Plant succession refers to the process by which plant communities change over time. In aquatic environments, this process can lead to the gradual transformation of a water body into a terrestrial ecosystem.

### Step 2: Analyze the Options
1. **Hydrocephalus**: This term is not related to plant succession. It actually refers to a medical condition involving the accumulation of cerebrospinal fluid in the brain.
2. **Samoseer**: This term is incorrectly used here. It refers to a type of ecological succession that occurs on newly exposed coastal sands, not in water bodies.
3. **Lithosphere**: This term refers to the rigid outer layer of the Earth, which is not related to plant succession in water bodies.
4. **Zerocere**: This term is related to plant succession in arid environments where water availability is limited, not in water bodies.

### Step 3: Identify the Correct Term
- The correct term for plant succession occurring in a water body is **Hydrosere**. This term describes the series of ecological changes in a water body leading to the establishment of a terrestrial ecosystem.

### Conclusion
- The correct answer to the question is **Hydrosere**.

### Final Answer
The correct answer is **Hydrosere**.

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