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Did you know?

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

Did you know?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

Did you know?

The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

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Equivalent Trig Expressions Equivalent Trig Expressions
Equivalent Trig Expressions Equivalent Trig Expressions
Equivalent Trig Expressions Equivalent Trig Expressions
Equivalent Trig Expressions Equivalent Trig Expressions
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Video: Embryonic development - week 1 and 2

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