Fact 1: Adult echinoderms have radial symmetry.

Fact 2: All animals with radial symmetry live in water.

Given the two facts above, answer the question "what lives in water?" with the following options: 
- adult echinoderms
 - fur seals
 - tortoises
 - the sun
 - crocodiles
 - fisherman
 - humans
 - salamanders


 

 adult echinoderms        