-
osculum
- porifera
- large opening at one end of the body through which water flows out of the spong
-
scpicules
- porifera.
- surround the osculum
-
-
collar cells
- porifera
- line central cavity
-
-
spongin
- porifera
- flexible proteinaceous spicules
-
porifera structures
- spicules
- collar cells
- amoebid cells
- spongin
- osculum
- spongocoel
-
cnidocytes
- cnidarians
- venom containing cells
-
polyp
- cnidarians
- form of body. attach to a surface and has tentacles pointing up
-
medusa
- cnidarians
- jellyfish
- free swimming
- tentacles pointing down
-
cnidarians
- cnidocytes
- polyp and medusa
- nematocyst
-
nematocyst
- cnidarians
- stinging fillament
-
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