You have learned that animals can be divided into two groups –vertebrates and invertebrates. Both of these can be divided into smaller groups. Invertebrates can be divided into smaller groups or phyla. In this lesson you will be able to identify the different types of invertebrates and their distinguishing characteristic.
Invertebrates are animals without backbone (Vertebral Column). Invertebrates are simple animals because they don’t have backbones. Its body parts and functions are simpler compared to those of the vertebrates. They are classified as: