Organisms that live in marine biomes must be adapted to the salt in the water, and marine biology is the study of organisms that happen to be marine. Given these facts, what is the study of creatures that live in water biomes among the following options:
- animals
 - warm-blooded
 - marine biology
 - it needs them
 - Animal survival
 - observation
 - alchemy
 - animal reproduction


 

   marine biology      