list the major homologies of all animals that first appear i

list the major homologies of all animals that first appear in sponges

Solution

Sponges or phylum porifera represents a very primitive class or organisms. It contains small sponges or animals with pores in their body.

Various homologies of sponges can be enlisted as below:

Examples: Some representative examples include Euspongia, Sycon, Spongilla etc.