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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

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Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

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Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

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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.

A fixed action pattern elicited by a sign stimulus. A fixed action pattern elicited by a sign stimulus.
The small-scale distribution of different tree species in a Douglas-fir forest is determined by both The small-scale distribution of different tree species in a Douglas-fir forest is determined by both
blood supply blood supply
The heat range of a spark plug is determined by the distance the heat has to flow from the tip to ... The heat range of a spark plug is determined by the distance the heat has to flow from the tip to ...
The tertiary of a transfer RNA as determined by X-Ray diffraction The tertiary of a transfer RNA as determined by X-Ray diffraction
The retail price of a packaged CD is $60.00, which includes a tax of 4%. What is the actual ... The retail price of a packaged CD is $60.00, which includes a tax of 4%. What is the actual ...
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