Advertisement Upgrade to remove ads

Flagella

whip-like structures of a collar cell

sponges

porifera

Cnidarians

sea anemones, corals, jellyfish, hydra

regeneration

ability of an organism to replace lost body parts

atoll

a kind of coral reef

spicules

can be made of silica; are in the jelly layer of sponges

polyp

cup-like form of cnidarians

medusa

free-swimming umbrella-like form of cnidarians

holes

pores

tentacles

the arm-like structures of cnidarians

budding

asexual sponge reproduction

flagella

help a sponge to keep water flowing through its body

jellyfish

marine cnidarians

barrier

a kinda of coral reef

nematocysts

coiled stingers at the end of cnidarians' tentacles

spongin

rubber-like substance the makes up some spicules

invertebrates

animals without backbones

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again

Example:

Reload the page to try again!

Reload

Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording

Create Set