There are two kidneys in human body. I
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Human body has two kidneys
The human body has two kidneys. They are bean-shaped organs located on each side of the spine, below the rib cage. The kidneys play a crucial role in filtering waste and excess fluids from the blood to create urine.
Simple diffusion occurs in various parts of the human body, including the lungs (for gas exchange), the intestines (for nutrient absorption), and the kidneys (for waste filtration). It is a passive process where molecules move across cell membranes down their concentration gradient without the need for a specific protein transporter.
The Kidneys
Kidneys, lungs
Some examples of body parts that come in pairs include eyes, ears, lungs, kidneys, and limbs. Having two of these body parts allows for symmetry and balance in human physiology.
The Kidneys
in kidneys
The Kidneys.
heart, lungs, kidneys
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