Sponges are a source of food for many species of fish, and coral reefs are homes to thousands of different kinds of fish, sponges, algae, and mollusks. Given these facts, what are coral reefs home to among the following options:
- life
 - fish
 - H 2 O
 - humans
 - reptiles
 - tigers
 - a ray
 - eggs


 

  fish       