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Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

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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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Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

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Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

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Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

Browning and Gunning demonstrated that placental transfer tissues increase plant reproductive succes Browning and Gunning demonstrated that placental transfer tissues increase plant reproductive succes
Risks of infectious disease increase in (a) high-density agricultural populations compared to (b) lo Risks of infectious disease increase in (a) high-density agricultural populations compared to (b) lo
Sample of an insurance card. Sample of an insurance card.
Greenhouse gases increase in the stratosphere Greenhouse gases increase in the stratosphere
Effect of an Increase in Technological Progress Effect of an Increase in Technological Progress
Effect of “Moral Restraint” in the Malthusian Model Effect of “Moral Restraint” in the Malthusian Model
Video: Inflammation Animation

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