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Biology

Official 143 clips

This playlist provides clips that convey key concepts in Biology.


Beakman's World: Sneezing and Tears

2m 10s

Beakmans explains that onions make you cry because of the chemical that gets into your nose. He then uses a schematic of a bathroom drainage system as a metaphor for how your nose, mouth and eyes are all connected. Lester sneezes when his nose was tickled and this causes his eyes to shut because the muscles are connected.

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