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Did you know?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

Did you know?

Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.

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Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Did you know?

During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.

Simplified diagram of the fractional distillation process Simplified diagram of the fractional distillation process
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Color mixtures of refracted light—additive process. Color mixtures of refracted light—additive process.
Suppressing Negative Emotions Suppressing Negative Emotions
What are the concentrations of Cr?+ and OH after the precipitation process is complete? What are the concentrations of Cr?+ and OH after the precipitation process is complete?
Video: Secondary and tertiary levels of protein structure Animation

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