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Biology, 22.06.2019 03:50
What did not occur in the proterozoic eon a)the oxygen levels increase greatly in the atmosphere,b)the emergence of the eukarya , c)muti cella’s eukaryotic organisms began to diversify,d)anaerobic bacteria kept thriving with more oxygen
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Biology, 22.06.2019 06:30
What is the problem in this article? what solution does the article propose?
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Biology, 22.06.2019 13:20
Where is the nictitating membrane found? a. between the eyelid and the eyeball b. between the retina and the optic nerve c. between the outer and middle ear d. in the organ of corti in the middle ear
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Biology, 22.06.2019 18:30
Plants need carbon dioxide from their environment to produce glucose during which stage of photosynthesis?
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Hemoglobin is made up of the protein heme and the red pigment globin. Hemoglobin is made up of the p...
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