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Author Question: Teen childbearing has been increasing since the 1990s. Indicate whether the statement is true or ... (Read 38 times) |
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
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.
The newest statin drug, rosuvastatin, has been called a superstatin because it appears to reduce LDL cholesterol to a greater degree than the other approved statin drugs.
The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.