Mechanical digestion is the breaking down of food into smaller pieces physically. Mechanical digestion begins in the mouth as the food is chewed.
but in the case of chemical digestion, it breaks the food into simpler nutrients that can be used by the cells. Chemical digestion begins in the mouth when food mixes with saliva.
for more refer to this:
Hope this helped
and ur welcm
This climate is warm.
The animals in the tundra are strong to live in such an environment.
I don't know what the rest of that stuff is sorry.
4 down is a mutation
16 down is Proteomics
3 across is amino acid (no space)
Answer:
The mantle is solid.
Explanation:
The mantle is the mostly-solid bulk of Earth's interior. The mantle lies between Earth's dense, super-heated core and its thin outer layer, the crust. The mantle is about 2,900 kilometers thick, and makes up 84% of Earth's total volume.
I think it maybe 75% because both parents can give the dog black hair