/u/the_protagonist's posts in /r/askscience

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If white blood cells are constantly dying and being replenished, how do new ones “know” what antibodies to produce?

16 upvotes

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Is there any other material that gets its color from Rayleigh scattering, like the sky does?

5 upvotes

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How are transparent shrimp possible?

1 upvotes

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What’s the default position of human eyelids - open or closed?

1 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
If white blood cells are constantly dying and being replenished, how do new ones “know” what antibodies to produce?	16
Is there any other material that gets its color from Rayleigh scattering, like the sky does?	5
How are transparent shrimp possible?	1
What’s the default position of human eyelids - open or closed?	1