Fact 1: Amphibians have sense organs to smell and taste chemicals.

Fact 2: Amphibians also have immune cells arranged into organs.

Given the two facts above, answer the question "Amphibians also have immune cells arranged to smell and taste what?" with the following options: 
- flies
 - Allergies
 - tadpoles
 - heat produced
 - an object
 - Chlorophyll
 - chemicals
 - water


 

       chemicals  