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Author Question: In some cultures, mate selection begins as early as infancy. Indicate whether the statement is ... (Read 116 times) |
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.
The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.
Vaccines prevent between 2.5 and 4 million deaths every year.
If all the neurons in the human body were lined up, they would stretch more than 600 miles.
Your heart beats over 36 million times a year.