Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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There are 20 feet of blood vessels in each square inch of human skin.
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Excessive alcohol use costs the country approximately $235 billion every year.
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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.
A hypothetical model of the process of cell-wall expansion.
The clotting process (coagulation).
The lost-wax casting process.
Deliberative nursing is a constant process of validating perceptions, thoughts, and feelings.
Cancer cells can move to new locations in the body, a process called metastasis
Here we show the first three divisions of cleavage, a process that carves up a zygote’s cytoplasm. ...