Question

to what phylum does a jellyfish belong?
select one:
a. porifera
b. cnidaria
c. mollusca

how does the jellyfish protect itself?
select one:
a. fangs
b. nematocysts
c. electrical impulses

Explanation:

For the first question: Porifera includes sponges, Mollusca includes snails and clams, while jellyfish are characterized by stinging cells and radial symmetry, which define the Cnidaria phylum.
For the second question: Fangs are not a feature of jellyfish, electrical impulses are not their defensive mechanism; jellyfish use specialized stinging cells called nematocysts to deter predators and capture prey, which serves as their protection.

Answer:

1. b. Cnidaria
2. b. nematocysts