the circulatory process
VictorGuzman67Published 4 years ago - 180 plays
no need to race in this one (seriously don't) this will teach you about the heart
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4 years ago
and this is another fact you have 600 muscles in your body
4 years ago
and that in a life time you can produce enough saliva to fill up a small pool
4 years ago
and that you 206 bones in your body
4 years ago
like the average human has trillion`s of cells