When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.
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There are more bacteria in your mouth than there are people in the world.
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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
The biological process of nitrogen fixation
Students
Both students with intellectual disability (ID) and students who are intellectually gifted need ...
The Impact of Cross-Ethnic Friendships on Minority Students’ Well-Being