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Author Question: About 20 percent of alcohol is absorbed through the ____. a. mouth b. esophagus c. stomach d. small ... (Read 46 times) |
Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.
Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).
Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.