5 interesting facts about human beings
Answers
Answer:
As you breathe, most of the air is going in and out of one nostril. ...
Blood makes up about 8 percent of your total body weight.
The human nose can detect about 1 trillion smells.
You have two kidneys, but only one is necessary to live.
Belly buttons grow special hairs to catch lint.
Good morning
Answer:
Widom teeth serve no purpose. They’re left over from hundreds of thousands of years ago. As early humans’ brains grew bigger, it reduced space in the mouth, crowding out this third set of molars.
Scientists aren't exactly sure why we yawn, but it may help regulate body temperature.
Your fingernails don’t actually grow after you’re dead.
If they were laid end to end, all of the blood vessels in the human body would encircle the Earth four times.
Humans are the only animals with chins.