Phylum of Porifera
No tissues or organ system
What is Porifera?
Porifera is a sponge in the sea though (like spongebob squarepants) but these sea sponges contains a few specialized cells and a symmetrical. These sponges have tiny pores all over the body (Ostia). These sponges have a central whiches is opening osculum this can happen in random times.
How Porifera looks like.
What does Porifera do?
Porifera is part of the Kingdom Animaila so for some reason Porifera sponges can evolve into a animal but it first have multicellular organisms.