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Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

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There are more nerve cells in one human brain than there are stars in the Milky Way.

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

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Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

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A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.

A recombination-based map of one of the chromosomes of Drosophila A recombination-based map of one of the chromosomes of Drosophila
Crossing over during meiosis leads to allele combinations in sex cells that are not present in the p Crossing over during meiosis leads to allele combinations in sex cells that are not present in the p
In the summer of 1793, a yellow fever epidemic struck Philadelphia, killing nearly 4,000. Tens of th In the summer of 1793, a yellow fever epidemic struck Philadelphia, killing nearly 4,000. Tens of th
The Power and Control Wheels of Abusive Relationships When one person in a relationship repeatedly ... The Power and Control Wheels of Abusive Relationships When one person in a relationship repeatedly ...
Mataphase chromosomes that are derived from chromatin during mitosis Mataphase chromosomes that are derived from chromatin during mitosis
Demonstration of sister chromatid exchanges (SCEs) in mitotic chromosomes Demonstration of sister chromatid exchanges (SCEs) in mitotic chromosomes
Video: Osmosis - Isotonic, Hypotonic, and Hypertonic​ Solutions

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