/u/artificiallyselected's posts in /r/askscience
Why do many animals have separate systems for excreting solid waste and urine instead of excreting both from one system?
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Which is better for the environment: using a ziplock bag or using aluminum foil to secure my sandwich?
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Why are there separate schools for dentistry while all other specialties are covered in medical school?
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When eating spicy foods, is the pain I feel being generated by my taste buds or simply the nerves in my tongue?
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If cells are constantly being replaced with new ones, how does tattoo ink remain in our skin cells for decades?
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If all humans disappeared instantly, how long would utilities (electricity, natural gas lines) continue to function without human intervention?
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