Cnidarians are a type of marine life, including jellyfish and corals.

A cnidocyte is a special cell that organisms such as jellyfish and sea anemones possess.

I saw a big jellyfish in the sea.

This report covers all the details.

This report includes all the details.

Coral reefs are very important for marine ecosystems.

I saw a big jellyfish in the sea.

This is a kind of flower.

I am very interested in marine biology.

We learned about the protection of the main sea.