### Identifying the Structure with Cnidocytes

1. **Understanding Cnidocytes**: Cnidocytes are specialized cells found in certain animal phyla, particularly in Cnidaria. These cells are responsible for the stinging mechanism used for capturing prey and self-defense.

2. **Evaluating the Options**:
- **Hydra**: A genus of small, freshwater organisms that belong to the phylum Cnidaria. Hydra possess cnidocytes, enabling them to sting.
- **Mussel**: Mollusks that do not have cnidocytes; they have a different set of characteristics.
- **Crayfish**: These are crustaceans and also do not have cnidocytes.
- **Sponge**: Members of the phylum Porifera, which do not have cnidocytes as they lack true tissues.

3. **Conclusion**: Among the provided options, Hydra is the only organism that possesses cnidocytes, making it capable of stinging.

### Final Answer
**Hydra**

Question

### Identifying the Structure with Cnidocytes

1. **Understanding Cnidocytes**: Cnidocytes are specialized cells found in certain animal phyla, particularly in Cnidaria. These cells are responsible for the stinging mechanism used for capturing prey and self-defense.

2. **Evaluating the Options**:
   - **Hydra**: A genus of small, freshwater organisms that belong to the phylum Cnidaria. Hydra possess cnidocytes, enabling them to sting.
   - **Mussel**: Mollusks that do not have cnidocytes; they have a different set of characteristics.
   - **Crayfish**: These are crustaceans and also do not have cnidocytes.
   - **Sponge**: Members of the phylum Porifera, which do not have cnidocytes as they lack true tissues.

3. **Conclusion**: Among the provided options, Hydra is the only organism that possesses cnidocytes, making it capable of stinging.

### Final Answer
**Hydra**

Knowee AI · Accepted Answer

### Identifying the Structure with Cnidocytes

1. **Understanding Cnidocytes**: Cnidocytes are specialized cells found in certain animal phyla, particularly in Cnidaria. These cells are responsible for the stinging mechanism used for capturing prey and self-defense.

2. **Evaluating the Options**:
   - **Hydra**: A genus of small, freshwater organisms that belong to the phylum Cnidaria. Hydra possess cnidocytes, enabling them to sting.
   - **Mussel**: Mollusks that do not have cnidocytes; they have a different set of characteristics.
   - **Crayfish**: These are crustaceans and also do not have cnidocytes.
   - **Sponge**: Members of the phylum Porifera, which do not have cnidocytes as they lack true tissues.

3. **Conclusion**: Among the provided options, Hydra is the only organism that possesses cnidocytes, making it capable of stinging.

### Final Answer
**Hydra**

What features a structure that can sting called cnidocytes?Group of answer choicesHydraMusselCrayfishSponge

Question

What features a structure that can sting called cnidocytes?

Solution

Identifying the Structure with Cnidocytes

Final Answer

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