It blocks pathogens, prevents harmful ultraviolet radiation from damaging deeper tissues, and retains essential bodily fluids to prevent dehydration.
The body's filtration system, removing waste from the blood. The Human Body
The most astonishing feature of the human body is its obsession with balance, known as . Without conscious effort, the body maintains a core temperature of 98.6°F (37°C), a blood pH of 7.35–7.45, and a precise blood glucose level. Without conscious effort, the body maintains a core
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The digestive system breaks down food into microscopic nutrients that the body can readily absorb for energy, growth, and cellular repair.
Groups of cells working together (e.g., muscle, nervous, connective, epithelial).
