Polyps of Obelia are

Options

A. Reproductive zooids
B. Nutritive zooids
C. Zooids meant for dispersal
D. All of above.

Answer

**Step-by-Step Solution:**

1. **Identify the Organism**: The question is about the polyps of Obelia, which is a type of colonial marine organism belonging to the phylum Cnidaria.

2. **Understand the Role of Polyps**: Polyps in Obelia serve specific functions within the colony. They are primarily responsible for nutrition.

3. **Define the Type of Polyp**: The polyps of Obelia are known as nutritive polyps. They are also referred to as gastrozoids or trophozoids.

4. **Color of the Polyps**: The polyps of Obelia are typically yellow in color.

5. **Symmetry**: These polyps exhibit radial symmetry, which is a characteristic feature of many cnidarians.

6. **Functions of the Polyps**: The main functions of these nutritive polyps include capturing prey, ingesting food, and digesting it. This highlights their role in the feeding process of the colony.

7. **Conclusion**: Based on the above information, the correct classification of the polyps of Obelia is that they are nutritive polyps (gastrozoids).

**Final Answer**: The polyps of Obelia are nutritive polyps (gastrozoids).

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