Biology, 18.09.2019 13:20, roseemariehunter12
Most non-vascular plants are found close to water sources. which of the following is not a reason why non-vascular plants need to be near water? a. to get water into their bodies without vascular tissue b. to get the water needed to grow tall c. to move nutrients from one part of the plant to another d. to allow sperm to swim to the eggs
Answers: 1
Biology, 21.06.2019 17:30, 365371
Charles darwin published his theory of evolution in 1859. in what way foes modern evolutionary theory differ from the theory as proposed by darwin? a) darwin inferred that individuals can evolve, but modern generic science has shown that this is not true. b)darwin inferred that individuals do not evolve, but modern genetic science has shown that this is not true. c)modern science has disproved most of darwin's original theory of evolution, because darwin knew nothing about generations and their role in heredity. d)generic studies have shown that gene expression and other factors operate along with natural selection, but most of darwin's theory has been supported by modern science.
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 21:20, saintsfan2004
Name three things that show evidence of evolution. write one sentence for each, explaining why it demonstrates evidence. (9 points)
Answers: 1
Most non-vascular plants are found close to water sources. which of the following is not a reason wh...
Mathematics, 26.06.2019 04:00
History, 26.06.2019 04:00
Social Studies, 26.06.2019 04:00
English, 26.06.2019 04:00
English, 26.06.2019 04:00
Mathematics, 26.06.2019 04:00
Mathematics, 26.06.2019 04:00
Mathematics, 26.06.2019 04:00