1. Amylase, produced in the mouth. It helps break down large starch molecules into smaller sugar molecules.
2. Pepsin, produced in the stomach.
3. Trypsin, produced in the pancreas.
I'm probably wrong. Sorry.
<span> sunlight, little water, air, rock these are some :)</span>
From te options above, the only true statement is :
Today, most scientists believe that both nature and nurture are important in animal behavior
For example : Imprinting ducks
hope this helps