Biology, 22.07.2019 21:30 BeenPaidGLO
Which object most likely exerts the strongest gravitational pull on other objects? a. a baseball b. a bowling ball c. a beach ball d. a golf ball
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Biology, 21.06.2019 20:00
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. chytridiomycosis is a fungal disease first identified in 1998 as a cause of massive amphibian deaths. in some severely impacted populations, a few individuals have survived, perhaps because of some natural resistance. if these resistant individuals continue to survive and prosper, new resistant populations might emerge. this would be an example of the founder effect artificial selection genetic drift natural selection sexual selection
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Biology, 22.06.2019 10:50
The carrier molecules of the electron transport system are located in the
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Biology, 22.06.2019 11:00
What factors contribute to the effect an environmental toxin has on the human body?
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Biology, 22.06.2019 13:30
Which of th following best describes how genes produce traits in an organism?
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Which object most likely exerts the strongest gravitational pull on other objects? a. a baseball b....
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