Question

Which of these is actually not a fish but related to corals and sea anemones?

Answer 1

$\sf{\large{Answer}}$

Jellyfish

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$\sf{\large{Extra \: Info}}$

Sea anemones and jellyfish look very different, yet they are both related. Corals are also a close cousin. They all belong to a group called cnidarians (pronounced ‘nid-air-e-ans’), also known as the ‘nettle animals’, because they have stinging tentacles.

Cnidarians have a simple body, with a single opening surrounded by a ring of tentacles. 

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Answer 2

➡$\bold{answer}$
✔$jellyfish$✔
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➡$\bold{explaination = }$⤵⤵
We'll start by explaining that anemone, coral, and jellyfish are all related. ... They look similar, but are different in some important ways. ... You can find them alone or in groups.