Did you know?
Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.
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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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Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.
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Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.
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The longest a person has survived after a heart transplant is 24 years.
The process of mitosis in an animal cell.
Plant Cell
the four stages of the cell cycle
cell labeled
Parts of a Cell