Answer:
The digestive system breaks down the food into molecules. The cells then convert those molecules into a form of energy they can use. When you breathe out, you get rid of the carbon dioxide that your cells produce during cellular respiration.
Answer:
it's all the way at the bottom
Explanation:
the older the fossil is the lower it is digged.
<span>it the lactic acid and pyruvic acid I think</span>
We are all made of stardust. almost every element on Earth was formed at the heart of a star. It is c