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Drinking and driving is a serious issue .Hundreds of Americans die because of people who where drunk driving or where the drunk driver.Today most car wrecks are a result of drunk driving.More procution sould Definitely be used to stop drunk driving. More kids should be taught in school about the importance of not drinking and driving as it is a big issue and we need more people to notice how bad it can be.
I don’t think I did very well
Answer:
Blank 1: Mechanical
Blank 2: teeth
Blank 3: Chemical
Blank 4: saliva
Explanation:
The above are correct.
Mechanical digestion refers to the physical break down of food particles by the teeth. This process involves grinding, breaking, masticating and tearing of food substances with the teeth. This is done in order to make the food substances smaller for chemical digestion.
The chemical digestion further breaks the smaller food particles into absorbable particles. This is carried out by some enzymes found in the saliva. These enzymes are secreted in the digestive tract and it then breaks the chemical bond holding food particles together.
Therefore, mechanical digestion is done by the teeth while chemical digestion is done by the saliva.
