Differentiate between Exoskeleton and endoskeleton

Explanation

### Step-by-Step Solution:

1. **Definition of Exoskeleton**:
- An exoskeleton is a type of skeleton that is located on the outside of an organism's body. It serves as a protective outer layer.

2. **Composition of Exoskeleton**:
- The exoskeleton is formed by the deposition of hard materials, which can include substances like chitin in arthropods or calcium carbonate in mollusks.

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