Hello!!
In the human digestive system, food enters the mouth and mechanical digestion of the food starts by the action of mastication (chewing), a form of mechanical digestion, and the wetting contact of saliva.
hope this helps!!
Answer:
B
Explanation:
It is not a direct transmitting of heat.
A. electrons
it is the electrons in the outermost shell of an atom that react with other atoms
Answer:
Option B
Explanation:
Peptidoglycan is a polymer that made of amino acids and sugar. This forms a layer of mesh like structure which is found on the outer side of the plasma membrane.
This is found in most of the bacteria which forms the cell wall. The sugar component that contains the alternating residues of N-acetylglucosamine and N-acetyl muramic acid.
Thus, the correct answer is option B
I'd say your answer would be a 50%-50% chance. So it would be false.
I hoped that helped!
