Answers: 2
Biology, 21.06.2019 19:30, khoadominh2206
Place the steps tor the formation of the enzyme pepsinogen in correct order
Answers: 1
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 08:10, carlomorales200
Match the functions to the cell types ? contraction and relaxation. conducting electrochemical signals fighting diseases carrying genetic material
Answers: 1
Biology, 22.06.2019 15:00, Gunn2368
Which of the following must be true for a fossil organism to be useful as an index fossil? a. the fossil organism must be widespread geographically. b. the fossil organism must be abundant. c. the fossil organism must be limited to a short span of geologic time. d. all of the above.
Answers: 1
I will give brainliest. I will report you if you give me dumb answer
A mutagen is
A.) a...
A.) a...
History, 05.05.2020 12:28
Mathematics, 05.05.2020 12:28
Biology, 05.05.2020 12:28
Mathematics, 05.05.2020 12:28
Mathematics, 05.05.2020 12:28
History, 05.05.2020 12:28
Biology, 05.05.2020 12:28