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Author Question: By the end of the Ice Age, there may have been___________ humans, or _________________. a. 10 ... (Read 21 times) |
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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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Illicit drug use costs the United States approximately $181 billion every year.
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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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Your heart beats over 36 million times a year.
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Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.