Biology, 24.07.2019 09:00 Ryleetarver
For example, when people burn fossil fuels, pollutants can enter the atmosphere and mix with the water vapor that is to form clouds. this polluted water falls to the surface as acid rain. carries the polluted water by gravity along the earth’s surface.
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Biology, 21.06.2019 19:00
The model illustrates a process by which a substance is taken up by a cell
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Biology, 21.06.2019 20:00
Read the following scenario to answer the following question. over the past 60 years, many amphibian species have experienced significant population declines, and some species have become extinct. scientists suspected that local human activities such as the destruction of wetlands, regional pollution, and deforestation were the main reasons for these losses. however, research over the past 20 years reveals significant amphibian population declines in protected areas of the world, such as nature preserves and parks. these global declines suggest widespread problems including increased ultraviolet radiation, acid rain, and disease. in switzerland, for example, 14 of the 20 native amphibian species are threatened with extinction. when most populations of a wide-ranging amphibian species are lost and the few remaining populations are widely separated, we expect to see that a. the founder effect becomes increasingly important b. microevolution no longer occurs c. gene flow between populations is reduced d. artificial selection becomes a greater factor in microevolution
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Biology, 21.06.2019 21:30
Which sentence is an example of a strong conclusion to an autobiography? a. i stayed after school three days in a row to practice onstage in the auditorium. b. i knew i would have to practice all week to memorize my dance for the recital. c. after the recital was over, i knew practicing was worth it, and i was looking forward to my next big challenge. d. on opening night, i danced in front of a packed auditorium.
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Biology, 22.06.2019 15:00
Why should organisms reproduce more offspring than will survive? select all that apply.
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For example, when people burn fossil fuels, pollutants can enter the atmosphere and mix with the wat...
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