1. ANIMAL KINGDOM I

2. ANIMAL KINGDOM I There are many different types of animals in the world. Many animals are quite similar to each other. Others are quite different. 3. ANIMAL KINGDOM I

Scientists have grouped animals in two classes:

Vertebrates

4. Invertebrates 5. ANIMAL KINGDOM I

Vertebratesare animals with backbone or internal skelleton .

backbone 6. ANIMAL KINGDOM I 7. ANIMAL KINGDOM I

Invertebrates haven't got backboneor internal skelleton . l