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The respiratory system works directly with the circulatory system to provide oxygen to the body. Oxygen taken in from the respiratory system moves into blood vessels that then circulate oxygen-rich blood to tissues and cells.
DNA
Nucleic Acids are the basis for the storage and transmission of hereditary information in all cells. Determines a cell's function and manufactures proteins & enzymes. Encodes instructions for making proteins and RNA. DNA stores the “operating instructions” for a cell.
At the back of the throat is where the palatine tonsils are
located. One of the tonsils is on the right side of the throat while the other
tonsil is on the left side of the throat. The major roles of the these tonsils
is to protect the body against gastrointestinal and respiratory infections.