Peppered moths and their all-black and all-white variations rest on the trunks
of trees. Which group of moths should be the fittest in its environment?
O
A. Peppered moths in a forest with blackened tree trunks
B. Peppered moths in a forest with lichen-covered tree trunks
O
C. White moths in a forest with lichen-covered tree trunks
O
D. Black moths in a forest with lichen-covered tree trunks
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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

Lucia is walking barefoot in her yard. she accidentally steps on a nail. how will her nervous system work to generate a reaction? arrange the eventschronologically.

Amajor source of energy for your body comes from