porifer (sponges)

Porifera (sponges)

No true tissues, multicellular, suspension feeders, lack true symmetry but some exhibit radical symmetry

Ostia

Pore that intake water and filter their food

Pinacocytes

Cells lining the outside of their body acting as a type of “skin”

Spongocoel

Interior cavity where there food gets traveled too through their Ostia pores

Choanocytes (collar cells)

Flagellated cells inside the interior of the sponge body that filter out the food particles

Amoebocytes

Has the role of distributing nutrients, making the gametes, and secret the material that forms the skeleton of the sponge

Mesophyll

One of the components of the sponges skeleton, it’s a gelatinous material

Spongin protein

a fiberous network that makes up the sponges Skelton

Spicules

Needle like structures that make up the sponges Skelton

Sequential hermaphrodism

The 2 different gametes are produced at different times

Oscula

Larger pore openings that can Carrie out the gametes

where does self fertilization happen

The spongocoel

Porocytes

Cells that form the Ostia pores

Budding

A type of asexual reproduction they can go through where small portions extent off the sponges body and eventually break off

Gemmules

A type of asexual reproduction where resting bodies go off into the water