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The individual credited with recognizing that the body actively fought infection was
Hydrochloric Acid
A strong corrosive acid that is used in the digestive system to help digest food and kill bacteria.
Herbivores
Animals that eat plants as their primary source of food, using special adaptations to digest a largely vegetarian diet.
Cellulose
An organic compound with the formula (C6H10O5)n, a polysaccharide consisting of a linear chain of several hundred to many thousands of β(1→4) linked D-glucose units, a primary structural component of plant cell walls.
Digestive Tracts
The series of hollow organs joined in a long, twisting tube from the mouth to the anus, where food is broken down and nutrients are absorbed.
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