Which group of organisms possess nematoblasts?

Explanation

**Step-by-Step Solution:**

1. **Understanding Nematoblasts**:
- Nematoblasts are specialized cells that are also known as nematocytes or stinging cells. They are primarily used for defense and offense in certain organisms.

2. **Identifying the Group of Organisms**:
- The group of organisms that possess nematoblasts is called Cnidaria. This group includes various marine animals such as jellyfish, corals, and sea anemones.

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