Biology, 29.01.2020 21:04 jcross11nate
In the past 10 years how much has immigration increased?
Answers: 1
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
Answers: 3
Biology, 22.06.2019 21:30
Adaptive radiations can be a direct consequence of four of the following five factors. selectthe exception. a) vacant ecological niches b) genetic drift c) colonization of an isolated region that contains suitable habitat and few competitor species d) evolutionary innovation e) an adaptive radiation in a group of organisms (such as plants) that another group uses as food
Answers: 1
Biology, 23.06.2019 02:00
Modern hospitals often contain semi private rooms and wards where many people share a single room. in light of the spread of microorganisms, what patients would be good candidates to occupy these rooms?
Answers: 3
In the past 10 years how much has immigration increased?...
Social Studies, 17.09.2020 14:01
Mathematics, 17.09.2020 14:01
Spanish, 17.09.2020 14:01
Spanish, 17.09.2020 14:01
Mathematics, 17.09.2020 14:01
Mathematics, 17.09.2020 14:01
Mathematics, 17.09.2020 14:01
Social Studies, 17.09.2020 14:01
Physics, 17.09.2020 14:01
Mathematics, 17.09.2020 14:01
Mathematics, 17.09.2020 14:01
Mathematics, 17.09.2020 14:01
Mathematics, 17.09.2020 14:01
Mathematics, 17.09.2020 14:01
World Languages, 17.09.2020 14:01
English, 17.09.2020 14:01
Spanish, 17.09.2020 14:01
History, 17.09.2020 14:01
Mathematics, 17.09.2020 14:01
Spanish, 17.09.2020 14:01