Like all animals; thru their food. They are filter feeders, if that helps. The water carries the little bits of food in their body along with the oxygen they need.
Yes, coral is a cnidarian.
On the field trip, I saw a "cnidarian"when we went on a submarine.**************************A jellyfish is a basic example of a cnidarian.
No, an octopus is not a cnidarian. Octopuses belong to the phylum Mollusca, while cnidarians belong to their own phylum called Cnidaria, which includes jellyfish, corals, and sea anemones.
respiratory system is a cnidarian
No- they do not belong to the phylum Cnidarian. They belong to Molluska.
A jelly fish. Cnidarian's have a sting cell called a cnidnocyte which is the defining feature.
No it is not. :)
Cnidarian comes from the Greek/Turkish word "Cnidos" which means stinging nettle
no :P
The sea
no. they are cetaceans.
no