B.the mass of carbon dioxide plus water is less than that of paper plus oxygen.
Is this supposed to be a true false question?
QUESTION 1
Which of the following genetic techniques does NOT use labelled DNA probes?
Answer:
7
Explanation:
water is neutral 7 is neutral ph
When the food hits our tongues it triggered saliva (chemical digestion) then our mouths chewing is mechanical. So therefor your answer is The Mouth. Hope this helps <3