Question

cnidaria - shape of life
what are the two basic body forms of cnidarians?
medusa and polyp
worm and coral
fish and sponge
nerve and muscle

Explanation:

Cnidarians are a group of animals. The medusa form is typically free - swimming (like jellyfish), and the polyp form is usually sessile (attached to a surface, like sea anemones). Worms belong to different phyla (e.g., Annelida), corals are a type of cnidarian but not a basic body form. Fish are vertebrates in the phylum Chordata, sponges are in the phylum Porifera. Nerve and muscle are tissues, not body forms.

Answer:

Medusa and polyp