What is leaderboard?
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Biology, 21.06.2019 22:00
What is thought to have caused the mass extinction at the end of the cretaceous period?
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Biology, 22.06.2019 03:30
Matthew decided he wanted to hike up mount everest. on his way to the top, it began to snow and the temperature dropped to -10°f. matthew forgot to wear a heavy jacket so his body began to shiver beyond control. in this case, matthew's body shivering is the to a drop in temperature. * 0 points reflex stimuli responce environmental facto
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Biology, 22.06.2019 04:30
Why are scientists concerned about the depletion of the ozone levels in the stratosphere?
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Biology, 22.06.2019 04:50
In this experiment, the was intentionally manipulated. it is the independent variable. the dependent variables that were measured were the
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