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Biology, 21.06.2019 18:40
The oxidizing agent our bodies use to obtain energy from food is oxygen (from the air). if you breathe 15 times a minute (at rest), taking in and exhaling 0.5 l of air with each breath, what volume of air do you breathe each day? air is 21% oxygen by volume. what volume of oxygen do you breathe each day?
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Biology, 21.06.2019 22:30
Witch type of microscope is used to view very small cell components like proteins and dna?
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Biology, 22.06.2019 11:20
2polnis which of the following is an advantage of an in vitro experiment?me
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Two different species occupy the same habitat. identify one reason these two species might not compe...
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