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..

1. 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.