Cndaria comes from, greek word "Cndios" (stinging nettle)

Requirements to be considered a cnidarian...

1: You have to have radial symmetry

2: YOU MAY NOT HAVE a heart, lungs, brain, nerve cells, or an anus...BUT MUST HAVE a mouth surounded by a crown of tentacles that have stinging cells called Nematocysts


More Requirements

another thing you must have is a body wall made from two layers, (ectoderm and endoderm) separated by a jelly-like layer called the Mesoglea.

Also, go through through the process of a dimorphic life cycle.

Big image
Big image

Portuguese Man O' War Stings

Big image

Austrailian Box Jellyfish Stings

Big image

Fire Coral Stings

BOX Jellyfish - The Most Dangerous Sea Creature