The saliva has enzymes that start to break down food using the lock and key system.The teeth chews the food and begins mechanical break down of food
Answer:
photosynthesis is what organisms use to create food and energy. this comes from the sun. and cellular respiration is carbon dioxide that comes from the animal after photosynthesis
Explanation:
I think the answer would be 420hg=4,200,000cg
Answer: Oxygen Isotopes!
Explanation: I just took the quiz and I got it correct!
