There are 20 feet of blood vessels in each square inch of human skin.
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Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
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Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.
Deficient knowledge in using crutches
Deficient knowledge surgical procedures
Different parts of the body mature at different rates. “General” refers to the body as a whole: the
The first commercially successful typewriter, manufactured in quantity beginning in 1874, surely fue
A Semantic Network Diagram for the Category “Animal”