Gland cells for secreting adhesive material in Hydra are present in

Options

A. Pedal disc
B. Stomach region
C. Growth region
D. Hypostome.

Answer

To solve the question regarding the location of gland cells that secrete adhesive material in Hydra, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Organism**: Recognize that Hydra is a sedentary freshwater organism that attaches itself to a substrate.

2. **Identify the Attachment Structure**: Note that Hydra uses a structure called the basal disc (or pedal disc) to anchor itself to the substrate.

3. **Function of the Basal Disc**: The basal disc contains gland cells that secrete adhesive substances. These secretions help the Hydra remain attached to the surface it inhabits.

4. **Evaluate the Options**: The question provides four options:
- Pebbledisk
- Stomach region
- Growth region
- Hypostome

5. **Determine the Correct Answer**: Since the gland cells that secrete the adhesive material are located in the basal or pedal disc, the correct answer is the **Pedal Disc**.

### Final Answer:
The gland cells for secreting adhesive material in Hydra are present in the **Pedal Disc**.

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