Sort out the animals on the basis of their symmetry (radial or bilateral) coelenterates, ctenophores, annelids, arthropods and echinoderms.

Explanation

To sort out the animals based on their symmetry (radial or bilateral), we can follow these steps:

### Step 1: Understand the Types of Symmetry
- **Radial Symmetry**: This type of symmetry means that the body can be divided into similar halves by multiple planes passing through a central axis.
- **Bilateral Symmetry**: This type of symmetry means that the body can be divided into two equal halves only by one specific plane, usually the sagittal plane.

### Step 2: Identify the Animals
The animals we need to classify are:
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