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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

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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.

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In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

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Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.

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Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

The transcription of three different genes that are found in the same chromosome. The transcription of three different genes that are found in the same chromosome.
The composition of DNA sequences that are found in the nuclear genome of humans The composition of DNA sequences that are found in the nuclear genome of humans
An example of polymorphism: the two colour variations found in the orchid Dactylorhiza sambucina. An example of polymorphism: the two colour variations found in the orchid Dactylorhiza sambucina.
The tiger, Panthera tigris, was historically found throughout much of Asia, but at low population de The tiger, Panthera tigris, was historically found throughout much of Asia, but at low population de
Atlatl mammoth ivory "creeping hyena", found in La Madeleine rock shelter, dated back to c Atlatl mammoth ivory "creeping hyena", found in La Madeleine rock shelter, dated back to c
Researchers have found that science instruction can be quite effective in grades 4 to 7. Researchers have found that science instruction can be quite effective in grades 4 to 7.
Video: Carbon fixing adaptations Animation

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