Question

question 1 / 6
all of the following organisms belong to phylum cnidaria except
a. jellyfish
b. coral
c. sea anemone
d. sea urchin
e. hydra

Explanation:

Jellyfish, coral, sea anemone, and hydra are all members of the phylum Cnidaria, known for their radial symmetry and cnidocytes (stinging cells). Sea urchins belong to the phylum Echinodermata, characterized by their spiny skin and pentaradial symmetry as adults.

Answer:

D. Sea urchin