Question

How does a sea anemone feed?

Answer 1

They fire a harpoon-like filament called a nematocyst into their prey. Once injected with the paralyzing neurotoxin, the prey is guided into the mouth by the tentacles.

Simple answer: They feed by paralyzing their prey and pulling it to their mouths.

Hope this helps!

Answer 2

They practically poison their prey (as the other answerer said) so that the prey is paralyzed, then they pull the prey into their mouth with their tentacles !