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Author Question: If the path of polar wandering found from two continents are not the same, then we can say that ... (Read 23 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 Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."
If you could remove all of your skin, it would weigh up to 5 pounds.
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.