Cockroaches can climb smooth or steep surfaces due to the adhesive pads found on the torses of their legs. They are called ……………………….

Options

A. (a) plantulae
B. (b) tibia
C. (c) pretarsus
D. (d) arolium

Answer

To answer the question regarding the adhesive pads found on the tarsus of cockroaches that enable them to climb smooth or steep surfaces, follow these steps:

### Step-by-Step Solution:

1. **Identify the Structure**: The question refers to the specific pads located on the legs of cockroaches that assist in climbing. These pads are found on the tarsus, which is the last segment of the leg.

2. **Understand the Function**: The adhesive pads allow cockroaches to grip and climb on various surfaces, including smooth and steep ones. This is due to their adhesive properties.

3. **Examine the Anatomy**: The tarsus consists of five segments. The first four segments have structures called plantulae, while the fifth segment contains arolia. These structures contribute to the adhesive ability.

4. **Analyze the Options**:
- Option A: Plantulae - These are indeed the pads that assist in climbing.
- Option B: Tibia - This is a different part of the leg, located above the tarsus.
- Option C: Print ourselves - This option does not relate to the anatomy of the cockroach.
- Option D: Arolia - While present in the tarsus, they are not the primary pads aiding in climbing.

5. **Select the Correct Answer**: Based on the analysis, the correct answer is **Plantulae**, as they are the specific structures that facilitate climbing.

### Final Answer:
Cockroaches can climb smooth or steep surfaces due to the adhesive pads found on the tarsus of their legs, and they are called **Plantulae**.