Which structure contains hypnotoxin?

Identify the correct features for $Medusa$ and $Polyp$ forms in Phylum $Coelenterata$ (Cnidaria) from the given list:
$I$ - $Sessile$
$II$ - $Umbrella-shaped$
$III$ - $Free-swimming$
$IV$ - $Produced$ $by$ $asexual$ $reproduction$
$V$ - $Cylindrical$
$VI$ - $Produced$ $by$ $sexual$ $reproduction$
$Medusa$ $\quad\quad$ $Polyp$

It is a common cavity that performs both digestive and circulatory functions.

Which of the following animals exhibit metagenesis,similar to plants?

Which of the following is an example of the phylum $Coelenterata$ (Cnidaria)?

The organ-pipe coral is known as .......