It starts in the mouth where chemicals in the saliva called amylase, break down starch and other food molecules into smaller sugars and molecules. Those are then carried down to the stomach. So the saliva in the mouth is really what starts the chemical digestion.
Hope this helps :)
The cell membrane helps to control what enters and leaves a cell. The substance which accounts for two-thirds of a cells mass is water. That makes the answer D.
I think this stage is the cytokinesis. It is <span>the division of the cytoplasm to form two new cells, overlaps with the final stages of mitosis. It may start in either anaphase or telophase, depending on the cell, and finishes shortly after telophase. Hope this helped.</span>
Answer:
answer is D the answer is D the answer is D
Answer:
Energy that is not used in an ecosystem is eventually lost as heat. Energy and nutrients are passed around through the food chain, when one organism eats another organism. In each case, energy is passed on from one trophic level to the next trophic level and each time some energy is lost as heat into the environment.
Explanation:
