Cnidarians are an entirely aquatic phylum of animals. They include jellyfish and corals, along with some lesser known creatures. Most species are marine, but a few burrow under the seafloor or live in freshwater lakes and rivers.
Cnidarians live in water.
the cnidarians live at the bottom of the sea ------- and the top of the sea, and everywhere in between...
muddy environment.
Iodine is not alive. It does not live in any environment.
Cnidarians live in an aquatic habitat where they stay their whole lives. Cnidarians also have two forms in its life cycle, the polyp is the first stage. This is like a sea anemone, basically it is anchored to the ground and must wait till it matures before evolving into its medusa form, which is like a jellyfish. Some polyp's have developed the ability to move from where they are anchored though, but it is unusual. Polyp and Medusa are found in mostly all waters, the water currents in the oceans have made it possible for them to inhabit all areas in todays oceans. There are also many different types of cnidarians.
yes cnidarians lay eggs
None
Australia
The Sea
In a desert.
in africa
chickees