What do you mean by metameres or somites ?

Explanation

### Step-by-Step Solution:

1. **Definition of Metameres/Somites**: Metameres, also known as somites, refer to the repeated segments or divisions found in certain organisms. They are structural units that make up the body of segmented animals.

**Hint**: Think of metameres as building blocks that form the body structure of certain animals.

2. **Occurrence in Phylum Annelida**: Metameres are primarily found in the phylum Annelida, which includes segmented worms such as earthworms.

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