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Biology, 21.06.2019 16:00
Which of the following is a main difference in cell structure between an onion cell and a human cheek cell? a. an onion cell contains one nucleus, whereas a human cheek cell contains two nuclei. b. an onion cell has a cell wall. c. a human cheek cell contains chloroplasts. d. there is no difference between an onion cell and a human cheek cell. you for your.
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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, 21.06.2019 22:30
Heat from earths interior and pressure from overlying rock transform the remains of marine sediments into
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How does the atmosphere primarily replenish its supply of nitrogen?...
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