Distinguish between diploblastic animals and triploblastic animals.

Explanation

### Step-by-Step Solution

1. **Definition of Diploblastic Animals**:
- Diploblastic animals are organisms that have two primary germ layers: the ectoderm and the endoderm.
- The ectoderm is the outer layer, while the endoderm is the inner layer.

2. **Definition of Triploblastic Animals**:
- Triploblastic animals are organisms that possess three primary germ layers: the ectoderm, the endoderm, and an additional layer called the mesoderm.
...