Biology, 18.03.2020 23:34 errinbaker4683
Darwin was influenced by several scientists as he worked On the Origin of Species. Select ALL of the following influencers of Darwin on the the theory of evolution.
a
Lyell
b
Malthus
c
LaMarck
d
Hutton
Answers: 3
Biology, 21.06.2019 20:00, u8p4
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 14:50, megamorph
Lactase is essential for digesting lactose in milk. this enzyme is specific for this sugar. why? molecules and active sites vary in size; only properly sized molecules can fit. there is a precise compatibility between the active site and the lactose molecule. specificity refers to the action of the enzyme, such as hydrolysis, and relatively few molecules can be hydrolyzed. reaction-specific enzymes assume a fit by folding around the most numerous substrate molecules.
Answers: 1
Biology, 22.06.2019 19:30, kaadenday3629
Why do you suppose the structural polysaccharide cellulose does not contain branches?
Answers: 3
Darwin was influenced by several scientists as he worked On the Origin of Species. Select ALL of the...
Medicine, 09.08.2021 08:00
Mathematics, 09.08.2021 08:00
Biology, 09.08.2021 08:00
Mathematics, 09.08.2021 08:00
Mathematics, 09.08.2021 08:00
Mathematics, 09.08.2021 08:00
History, 09.08.2021 08:00
Mathematics, 09.08.2021 08:00
Mathematics, 09.08.2021 08:00