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Did you know?

After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

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The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

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All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.

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Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

The rotating assembly for a V-8 engine that has eight pistons and connecting rods and one ... The rotating assembly for a V-8 engine that has eight pistons and connecting rods and one ...
When checking a coil-on-plug (COP) assembly, check that the primary and secondary wiring looks ... When checking a coil-on-plug (COP) assembly, check that the primary and secondary wiring looks ...
The fuelpressure sensor and fueltemperature sensor are often constructed together in one assembly ... The fuelpressure sensor and fueltemperature sensor are often constructed together in one assembly ...
A gasoline direct-injection (GDI) fuel rail and pump assembly with the electric pressure control ... A gasoline direct-injection (GDI) fuel rail and pump assembly with the electric pressure control ...
Multiprotein complexes in the mitochondrial respiratory assembly Multiprotein complexes in the mitochondrial respiratory assembly
The assembly of general transcription factors required for the initiation of transcription by RNAP I The assembly of general transcription factors required for the initiation of transcription by RNAP I
Video: Molecules, Membrane Permeability and Structure

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