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Author Question: The ____ couples convection in the liquid core with Earth's rotation to produce electric currents ... (Read 262 times) |
The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.
Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.
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.
Your heart beats over 36 million times a year.