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Did you know?

This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

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The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

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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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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

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During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.

Biology deals with the study of the many varieties of living organisms. Biology deals with the study of the many varieties of living organisms.
Drugs and Human Behavior Drugs and Human Behavior
Four approaches to studying the evolution of human behavior. Four approaches to studying the evolution of human behavior.
B. F. Skinner documented how operant conditioning changes behavior. B. F. Skinner documented how operant conditioning changes behavior.
Reptilian Brain or Instinctive Brain Promote Understanding of Human Behavior Reptilian Brain or Instinctive Brain Promote Understanding of Human Behavior
Sociologists study the social factors that underlie human behavior, the experiences that mold us, ... Sociologists study the social factors that underlie human behavior, the experiences that mold us, ...
Video: Chromosome structural organization/ Mechanisms for chromosome movement Animation

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