Question

description
the planula is the result of
(asexual or sexual) reproduction.
the purpose of the planula is to...
description
the strobila is the
(polyp or medusa) phase of the life cycle.
the purpose of the strobila is to ...
description
the ephyra is the
(polyp or medusa) phase of the life cycle.
another name of the ephyra is a
(gamete, bud, gemmules).

Explanation:

The planula is formed from the fertilization of egg and sperm, which is sexual reproduction. Its purpose is to disperse and settle to form a new polyp. The strobila is the polyp phase that undergoes asexual reproduction to produce ephyrae. The ephyra is the juvenile medusa phase and is also a type of bud.

Answer:

1. Sexual; disperse and settle to form a new polyp
2. Polyp; produce ephyrae asexually
3. Medusa; bud