First they don't use oxygen, plants use the CO2 in the air and release oxygen out into the air after the plant used up the CO2
The pancreas is the organ that releases most of the digestive enzymes needed for chemical digestion. Since the food is entering from the stomach, much of the enzymes are alkaline to neutralize the acid & protect the small intestines.
Hope this helps!
Answer: a tent
Explanation:
Because that is what you use to sleep in
Polymer will reduce only because hydrolysis doesn’t produce but polymer does produce.
What molecules ? Need more info .