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Biology, 22.06.2019 08:00
What advantages does a pedigree have over a written passage?
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Biology, 22.06.2019 23:00
Waste water from industries and domestic sources can be treated by chlorination or ultraviolet radiation. there are pros and cons to using either chlorine or uv radiation to kill harmful microorganisms. what is one reason chlorination would be preferred over ultraviolet radiation? a) chlorine only eliminates visible impurities and is ineffective against microorganisms. b) chlorine not only kills bacteria but provides a residual effect on returning microorganisms. c) uv radiation can be used only to treat drinking water and is ineffective in treating waste water. d) ultraviolet radiation is more effective
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Which of these is required for natural selection to happen?...
Mathematics, 27.05.2021 22:40
Mathematics, 27.05.2021 22:40
Mathematics, 27.05.2021 22:40
Mathematics, 27.05.2021 22:40
Mathematics, 27.05.2021 22:40
Mathematics, 27.05.2021 22:40
Mathematics, 27.05.2021 22:40
Mathematics, 27.05.2021 22:40
Mathematics, 27.05.2021 22:40
Mathematics, 27.05.2021 22:40
Mathematics, 27.05.2021 22:40