Question

sponge - shape of life
how do most sponges reproduce?
they reproduce through pollination
they release sperm and eggs into the water
they divide into two
they lay eggs on land

Explanation:

Sponges are aquatic animals. Pollination is for plants. Sponges don't divide into two like some single - celled organisms in a simple fission way (they have more complex asexual and sexual reproduction but the common sexual way is releasing gametes). They are aquatic so don't lay eggs on land. Most sponges reproduce sexually by releasing sperm and eggs into the water.

Answer:

They release sperm and eggs into the water.