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Did you know?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

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Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

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The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

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Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

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IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Model of a longitudinal study in which 983 students were surveyed in 1984 and then again in 1985, 19 Model of a longitudinal study in which 983 students were surveyed in 1984 and then again in 1985, 19
Norman Bel Geddes, with Dr. Otto Koller, Air Liner Number 4. Norman Bel Geddes, with Dr. Otto Koller, Air Liner Number 4.
Determining a good table height. Stand facing the table with your hands at your sides. Adjust the ... Determining a good table height. Stand facing the table with your hands at your sides. Adjust the ...
Prove the argument using two column proof number 5 only Prove the argument using two column proof number 5 only
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The number of phenotypic classes in the F2 generation increases as the number of genes controlling t The number of phenotypic classes in the F2 generation increases as the number of genes controlling t
Video: Brain Anatomy Animation (Part 2 of 2)

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