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Author Question: According to the text, sociology first emerged as a distinct area of study a. in Europe during ... (Read 42 times) |
Approximately 500,000 babies are born each year in the United States to teenage mothers.
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.
The familiar sounds of your heart are made by the heart's valves as they open and close.
Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.
The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.