There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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There are approximately 3 million unintended pregnancies in the United States each year.
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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
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Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.
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Asthma cases in Americans are about 75% higher today than they were in 1980.
Structure of the mitotic spindle.
Structure of chlorophyll molecules in chloroplasts of plants
Structure of the EcoRI nuclease complexed with its DNA substrate
Various Levels of Organic
Typical leaf structure of eudicots (left) and monocots (right).