Answer:
Chemical digestion begins in the mouth when food mixes with saliva. Saliva contains an enzyme (amylase) that begins the breakdown of carbohydrates.
Explanation:
Answer:
The immune system recognizes damaged cells, irritants, and pathogens, and it begins the healing process. When something harmful or irritating affects a part of our body, there is a biological response to try to remove it.
...
These can include:
fatigue.
mouth sores.
chest pain.
abdominal pain.
fever.
rash.
joint pain.
Answer:
If we consider the entire nervous system as an electric grid, the central nervous system would represent the powerhouse, <u>whereas the peripheral nervous system would represent long cables that connect the powerhouse to the outlying cities </u><u><em>(limbs, glands, and organs) to bring them electricity and send information back</em></u>
Explanation:
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