Which body structure describes the freshwater hydra?

A) a swimming medusa with mouth pointing downward
B) a swimming medusa with mouth pointing upward
C) a sessile medusa with mouth pointing upward
D) a polyp with mouth pointing downward
E) a polyp with mouth pointing upward

Freshwater Hydra

A small, tentacled, aquatic organism found in freshwater, known for its extraordinary ability to regenerate.

Medusa

Among cnidarians, bell-shaped body form that is directed downward and contains much mesoglea.

Polyp

Among cnidarians, body form that is directed upward and contains much mesoglea. In anatomy: small, abnormal growth that arises from the epithelial lining.