Meh: What’s the most important thing you learned in grade school?

Stop, Drop, and Roll!

Stop, Drop, and Roll!
The mitochondria is the powerhouse of the cell.

The mitochondria is the powerhouse of the cell.
Dysentery is rampant on the Oregon Trail.

Dysentery is rampant on the Oregon Trail.
Something else. Drop knowledge in the comments.

Something else. Drop knowledge in the comments.

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