Fact 1: Scales are used for protection by scaled animals.

Fact 2: Like all reptiles, alligator skin is covered with rows of scales.

Given the two facts above, answer the question "what uses its skin for protection?" with the following options: 
- amphibians
 - squids
 - worms
 - shield
 - alligators
 - sea urchins
 - Annelids
 - chicken


 

     alligators    