Cnidarians

simple network of nerve cells

• nerve ring

• nerve net

• brain

• ganglia

looks like a mushroom with tentacles streaming down from below

• medusa

• polyp

• hydra

• jellyfish

Greek word for "nettle"

• pseudopodia

• arthropod

• cnidaria

• flatworm

bump on side of flatworm's head used for detecting food

• ears

• sensory lobes

• sense organs

• fingers

Tags

NGSS.MS-LS1-8

shaped like vases and usually live attached to a surface

• medusa

• hydra

• polyp

• sea anemone

ring of nerve cells in the center of nerve net

• nerve net

• nerve ring

• brain

• ganglia

tiny barbed spear

• spear

• painful

• torpedo

• nematocyst

All cnidarians have ________________ _______________.

• weird bodies

• stinging cells

• long tentacles

• nerves

What are the 2 forms the cnidarians come in?

• medusa and polyp

• medusa and sea anemone

• jellyfish and polyp

• hydra and coral

True or False? Most cnidarians spend their lives as a polyp.

• True

• False