Fact 1: Adult sponges produce eggs and sperm.

Fact 2: All adult sponges are sessile.

Given the two facts above, answer the question "A thing which is what produces eggs and sperm?" with the following options: 
- seeds
 - fertile
 - insects
 - organ
 - a fish
 - pollen
 - barnacles
 - sessile


 

        sessile 