The organism shown is a free-living one that is anchored to the
bottom of ponds and streams during one stage of its life cycle.
What is the common name of the group to which this organism
belongs?
O cnidarians
O rotifers
O bryozoans
O mollusks
The organism describes sounds like a hydra, which is a genus of organisms that belongs to the phylum cnidaria. These organisms are tubular organisms with tentacles surrounding their mouths
