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Cuba: Island of Hope Cuba: What Next? Bass Memorial Academy: A New Beginning
a year ago
EGBN.TV
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hsw
A city is analogous to the human body: There are millions of people doing thousands of jobs, streets provide a transportation network and all efforts must be coordinated.
1m 11s |
4 months ago
HowStuffWorks
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In girls, the ovaries produce estrogen and regulate puberty. In boys, the testes produce testosterone and regulate puberty.
1m 32s |
4 months ago
HowStuffWorks
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The thymus helps the body fight disease, and the pancreas regulates blood glucose levels using insulin. Diabetes is a disease caused by the inability of the pancreas to regulate insulin levels.
2m 32s |
4 months ago
HowStuffWorks
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...an Dream: Autos reparieren in Hollywood / Technik mit Marc Surer: Allrad-Systeme im Test / Auto-News / Testbericht: Opel Zafira OPC, 2. Teil / Neues Quiz / Konkurrenzkampf: Mercedes C63 AMG vs. ...
8 months ago
MotorShow tcs
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Nine glands, including the brain, pancreas, reproductive organs and thyroid, make up the endocrine system.
3m 3s |
4 months ago
HowStuffWorks
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