How many neurons are in the human brain?
The human brain contains about 86 billion neurons.
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- Do identical twins have the same fingerprints?
“Fingerprints form before birth, and even identical twins have different ones.”
Reference: Encyclopaedia Britannica
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What is the largest organ in the body?
Skin is the body's largest organ, covering about 20 square feet in adults.
How much energy does the brain use?
The brain makes up only about 2% of body weight but uses about 20% of the body's energy.