Plzz answer me fast I am in test​ IT IS MATHS
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Biology, 21.06.2019 18:30
The gene that causes sickle-cell disease is present in a higher percentage of residents of sub-saharan africa than among those of african descent living in the united states. even though this gene causes sickle-cell disease, it also provides some protection from malaria, a serious disease that is widespread in sub-saharan africa but absent in the united states. discuss an evolutionary process that could account for the different percentages of the sickle-cell gene among residents of the two regions.
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Biology, 22.06.2019 04:10
How are the reproductive cycles of a fungus and a pteridophyte similar? a)both organisms form fruiting bodies that produce diploid seeds. b)both organisms produce haploid spores and exhibit diploid and haploid stages. c)both organisms reproduce sexually when two haploid hyphae fuse. d)both organisms exhibit a diploid stage and are only able to reproduce asexually.
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Biology, 22.06.2019 15:30
Which environmental change would most likely result in bullfrog offspring that are able to store more water than bullfrogs in previous generations?
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Biology, 22.06.2019 16:30
Which part of the spine is likely to cause a nerve signal to travel faster? a. backbones b. white matter c. nuclei d. gray matter
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English, 01.03.2020 04:31
Chemistry, 01.03.2020 04:31
History, 01.03.2020 04:31
History, 01.03.2020 04:31
Mathematics, 01.03.2020 04:32
Mathematics, 01.03.2020 04:32
Chemistry, 01.03.2020 04:32
English, 01.03.2020 04:32
English, 01.03.2020 04:32
Chemistry, 01.03.2020 04:32
Mathematics, 01.03.2020 04:32
History, 01.03.2020 04:33