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Author Question: What do we currently believe was the main source of the Earth's oceans and atmosphere? A) impacts ... (Read 28 times) |
There are 60,000 miles of blood vessels in every adult human.
Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.
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.
According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.
In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.