Question

Describe the criteria for animal classification.

Answer 1

The basis of animal classification are as followed:

1. Level of organisation (cellular, tissue, organ, organ system organisation)

2. Symmetry (radial and bilateral symmetry)

3. Diploblastic and triploblastic organisation

4. Coelom (acoelomates and pseudocoelomates)

5. Segmentation

6. Notochord (chordates and non- chordates)

7. Sex (monoecious and dioecious)