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Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

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Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

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It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

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The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

Cell Cell
Reed-Sternberg cell. Reed-Sternberg cell.
A single base substitution leading to a single amino acid substitution in the hemoglobin beta chain A single base substitution leading to a single amino acid substitution in the hemoglobin beta chain
Stem Cell Production Stem Cell Production
In F- F+ mating, demonstrating how the recipient F- cell is converted to F+ In F- F+ mating, demonstrating how the recipient F- cell is converted to F+
Cytotoxic T Cell Killing a Cancer Cell Cytotoxic T Cell Killing a Cancer Cell
Video: Appendicitis Animation

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