The first step of chemical digestion starts in the mouth. Saliva, the fluid released by the salivary glands in the mouth, contains an enzyme that breakdowns food starch and turns it into simple sugars. This enzyme is called amylase or also known as alpha-amylase or ptyalin.
They ensure they leave the system and they also ensure that people get the nutrients they need.
I remember this from 8 grade here are the answer for
1.) A
<span>2.) C </span>
<span>3.) C</span>
Answer:
I'm thinking D because b and c are saying the same thing basically and A is accurate but it doesn't go to well with the question good luck
About 1.7 million species have been identified on earth.