| A | B |
|---|
Osculum,  | Osculum - large exit opening of a sponge, |
Ostium / ostia,  | Ostium / ostia - small entrance hole in sponges, |
Atrium,  | Atrium - internal cavity of a sponge, |
Choanocyte,  | Choanocyte - aka collar cells, beat a flagella to create water flow. Also traps food., |
| Sessile | Sessile - an organism that doesn't move as an adult |
| Porifera | Porifera - phylum name for sponges, means "many pores" |
| Amoebocyte | Amoebocyte - cells in sponges that digest food particles |
| Spicule | Spicule - spike shaped structures that help provide structure in sponges |
| Detritus | Detritus - Dead organic matter, can be eaten by sponges |
| Plankton | Plankton - organisms that drift suspended in the water column, small plankton is eaten by filter feeders |
| Filter feeding | filter feeding - method of eating where an organism sucks in water and sifts out edible particles |
| Asexual reproduction | Asexual reproduction - produces offspring genetically identical to the parent |
