Which of the following statements is not correct?

Options

A. Offspring produced by asexual reproduction are called clone.
B. Microscopic, motile, asexual reproducive structures are called zoospores.
C. In potato, banana and ginger the plantlets arise from the internodes present in modified stem.
D. Water hyacinth growing in the standing water drains oxygen from water which leads to death of fishes.

Answer

To determine which statement is not correct, we will analyze each option provided in the question.

### Step-by-Step Solution:

1. **Analyze the First Statement:**
- The statement claims that "offsprings produced by asexual reproduction are called clones."
- **Evaluation:** This statement is correct. Asexual reproduction results in offspring that are genetically identical to the parent, hence they are referred to as clones.

2. **Analyze the Second Statement:**
- The statement claims that "microscopic motile asexual reproductive structures are called zoospores."
- **Evaluation:** This statement is also correct. Zoospores are indeed motile asexual spores that can move and are produced by certain organisms.

3. **Analyze the Third Statement:**
- The statement claims that "in potato, banana, and ginger, the plantlets arise from the inter-node present in the modified stem."
- **Evaluation:** This statement is incorrect. In these plants, the plantlets actually arise from the nodes of the modified stem, not the inter-nodes.

4. **Analyze the Fourth Statement:**
- The statement claims that "water hyacinth growing in standing water drains oxygen from the water which leads to the death of fishes."
- **Evaluation:** This statement is correct. Water hyacinth does consume oxygen in the water, leading to oxygen deficiency which can cause the death of fish.

### Conclusion:
The statement that is not correct is the third one: "In potato, banana, and ginger, the plantlets arise from the inter-node present in the modified stem."

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