Fact 1: Sponges are a source of food for many species of fish.

Fact 2: Sea sponges are animals in the Phylum Porifera.

Given the two facts above, answer the question "animals in the Phylum Porifera are a source of what for many species of fish" with the following options: 
- oxygen
 - sound
 - food
 - waste
 - life
 - edible
 - Energy
 - amusement


 

   food      