Fact 1: Along tail can be used to move through water by an animal.

Fact 2: Thus swimming is defined as a special kind of moving, namely moving in or through water.

Given the two facts above, answer the question "A long tail can be used to do what?" with the following options: 
- courtship
 - Electrical energy
 - gather meat
 - hide from predators
 - swim through water
 - it keeps an organism warm
 - reproduce
 - build shelter


 

     swim through water    