1
What carries oxygen around the body?
2
Most adults have how many teeth?
3
Where is the smallest bone found?
4
How long does it take to completely digest eaten food?
6
Humans shed about how many particles every hour?
7
A human baby has how many more bones than an adult?
8
What do we have living in our eyelashes?
9
What is the strongest muscle in the human body?
10
Name the two things on your body that never stop growing :
11
Most of the dust underneath your bed is actually what?
12
How long does your food stay in your stomach for?
13
How many words can the brain read up to per minute?
14
How many tones can a full head of hair hold?
15
How long does the does the average red blood cell live for?
16
How much water is our body made up of?
17
What age do humans gradually begin to shrink from?
18
One square inch of human skin contains how many sweat glands?
19
What is the lifespan of taste buds?
20
The heart pumps about how many barrels of blood during a lifetime?
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