Tentacles of ctenophores bear

Options

A. scleroblasts
B. colloblasts
C. cnidoblasts
D. chondroblasts

Answer

To answer the question "Tentacles of ctenophores bear," we will follow these steps:

### Step-by-Step Solution:

1. **Understand the Organism**: Ctenophores, also known as comb jellies, belong to the phylum Ctenophora. They are marine invertebrates known for their unique method of locomotion and their tentacles.

2. **Identify the Function of Tentacles**: The tentacles of ctenophores are primarily used for capturing prey. This is a crucial aspect of their feeding mechanism.

3. **Explore the Types of Cells in Tentacles**: The tentacles of ctenophores are specialized structures that contain specific types of cells. The question asks what these tentacles bear.

4. **Examine the Options**: The options provided are:
- Scleroblast
- Coloblast
- Nidoblast
- Chondroblast

5. **Determine the Correct Cell Type**:
- **Scleroblast**: Typically associated with the formation of hard structures, not relevant here.
- **Coloblast**: These are specialized cells found in ctenophores that are responsible for capturing prey. They have a sticky surface that helps in trapping small organisms.
- **Nidoblast**: These are associated with the formation of nematocysts in cnidarians, not ctenophores.
- **Chondroblast**: These are cells that form cartilage, which is not applicable to ctenophores.

6. **Conclude the Answer**: Based on the above analysis, the correct answer is **Coloblast**, as these are the specialized cells found in the tentacles of ctenophores that aid in capturing prey.

### Final Answer:
The tentacles of ctenophores bear **Coloblast**.

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