Biology, 25.07.2019 23:00 geezwell8875
In the middle of the night, you hear two loud thumps outside your bedroom door. your nervous system increases your heart rate and sends blood away from internal organs to your muscles, preparing you for "fight or flight." when you learn it is just your roommate coming in late, your nervous system slows down your heart rate and calms you down.
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Biology, 22.06.2019 13:00, Evilgus4846
Blank is a rock with a find dark texture that makes up the oceanic crust
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Biology, 22.06.2019 13:20, NetherisIsTheQueen
Pl as time goes by and water goes through the water cycle again and again, the amount of water on earth: increases decreases ostays the same goes up and down
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In the middle of the night, you hear two loud thumps outside your bedroom door. your nervous system...
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