Primary functions of the medusa?

The primary function of medusa is to carry out sexual reproduction and to allow the species to disperse to different locations.

Explanation:

There are two distinct cnidarian body forms: polypoid and medusoid.

The medusa is more of an umbrella or bell shape, with the mouth facing down. The body of the medusa is often called the bell. Medusae are usually free-swimming and either propel themselves using muscle contractions or float along water currents like plankton.