Question

the sexual zooid of obelia is

Answer 1

Sexual zooid of obelia is Medusa which is umbrella like in structure.

Answer 2

Solution:

Sexual zooid of obelia is Medusa.

Explanation:

1. Medusa is circular tiny umbrella-like in shape.
2. It is a sexual or reproductive zooid of obelia. They are dioecious.
3. They are free-swimming medusa that reproduces sexually to produce ova and sperm.
4. Ova and sperm fuse to form zygotes which further form free-swimming larvae with cilia.
5. These larvae attach themselves to the bottom of the sea and form polyp.