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Did you know?

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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It is difficult to obtain enough calcium without consuming milk or other dairy foods.

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Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

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Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

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The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.

Relatively simple changes in Hox genes control limb formation in tetrapods. Relatively simple changes in Hox genes control limb formation in tetrapods.
Simple food web of an Arctic island. NOTE: The indication of detritivores and pathogens was not part Simple food web of an Arctic island. NOTE: The indication of detritivores and pathogens was not part
simple squamous alveoli simple squamous alveoli
Testing a Simple Hypothesis Testing a Simple Hypothesis
A health care professional taking a radial pulse and common pulse points. A health care professional taking a radial pulse and common pulse points.
Simple Sentences by Marc (Grade 1) Simple Sentences by Marc (Grade 1)
Video: The primary factors that affect circulation - MABP, CO and SVR

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