Select incorrect statement for prickles

Options

A. They are emergences over epidermal tissue system
B. They have vascular supply
C. Protect the plant from grazing animals
D. They help in climbing in some plants

Answer

**Step-by-Step Solution:**

1. **Understanding Prickles**: Prickles are outgrowths from the epidermal tissue of plants. They are not true thorns or spines, but rather modifications of the outer layer of the plant.

2. **Evaluating the Statements**:
- **Statement 1**: "They are emergences over epidermal tissue system."
- This statement is **correct**. Prickles originate from the epidermis and are indeed emergent structures.

- **Statement 2**: "They have vascular supply."
- This statement is **incorrect**. Prickles do not have a vascular supply; they are made up of epidermal tissue and lack the internal vascular structures found in other plant structures like thorns.

- **Statement 3**: "To protect the plant from grazing animals."
- This statement is **correct**. One of the functions of prickles is to deter herbivores and protect the plant.

- **Statement 4**: "To help in climbing in some plants."
- This statement is also **correct**. In certain climbing plants, prickles can assist in providing support as they grow.

3. **Conclusion**: After evaluating all the statements, the only incorrect statement regarding prickles is that they have a vascular supply.

**Final Answer**: The incorrect statement for prickles is: "They have vascular supply."

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