Name the phyla which have radial symmetry:

Answer

To answer the question "Name the phyla which have radial symmetry," we can follow these steps:

### Step-by-Step Solution:

1. **Understand Radial Symmetry**:
- Radial symmetry refers to a type of symmetry where the body plan is arranged around a central axis, allowing for multiple identical sections or patterns radiating out from the center. This means that if you were to slice the organism through the center, each section would be a mirror image of the others.

2. **Identify Phyla with Radial Symmetry**:
- There are two main phyla in the animal kingdom that exhibit radial symmetry:
- **Phylum Cnidaria** (previously referred to as "Cilentrata" in the transcript): This phylum includes organisms such as jellyfish, corals, and sea anemones. They have a body plan that is typically organized around a central axis.
- **Phylum Echinodermata**: This phylum includes marine organisms like starfish, sea urchins, and sea cucumbers. Echinoderms exhibit radial symmetry, especially in their adult forms.

3. **Conclude the Answer**:
- The two phyla that exhibit radial symmetry are **Cnidaria** and **Echinodermata**.

### Final Answer:
The phyla which have radial symmetry are **Cnidaria** and **Echinodermata**.

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