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Did you know?

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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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

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Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

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More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.

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Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

The main events of mitosis and meiosis The main events of mitosis and meiosis
Types of Ore Deposits—Sedimentary Types of Ore Deposits—Sedimentary
A variety of types of scissors. A variety of types of scissors.
Various types of bandages. Various types of bandages.
The two types of neural migration: radial migration and tangential migration. The two types of neural migration: radial migration and tangential migration.
Video: Ear Animation

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