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On average, the stomach produces 2 L of hydrochloric acid per day.

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There are 20 feet of blood vessels in each square inch of human skin.

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Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

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Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

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Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

There are multiple pathways for heat exchange between organisms and the environment. There are multiple pathways for heat exchange between organisms and the environment.
Internal and External Environment Internal and External Environment
Preparing a Urine Specimen for Microscopic Examination (for Classroom Evaluation Only) Preparing a Urine Specimen for Microscopic Examination (for Classroom Evaluation Only)
The social movement that centers on the environment has become global. In all nations, people are ... The social movement that centers on the environment has become global. In all nations, people are ...
The rock cycle and the Earth’s physical environment The rock cycle and the Earth’s physical environment
Testing Infants’ Knowledge Testing Infants’ Knowledge
Video: Regulation of GFR: autoregulation via tubuloglomerular feedback, neural & hormonal regulation

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