Fact 1: Adult sponges produce eggs and sperm.

Fact 2: Adults are sexually mature.

Given the two facts above, answer the question "mature sponges produce what?" with the following options: 
- eggs and sperm
 - live young
 - just sperm
 - Organic compounds
 - Chemical energy
 - just eggs
 - heat energy
 - gastropod shells


 

 eggs and sperm        