Differences in mating patterns of Montane and Prairie Voles (promiscuous and monogamous, respectively) can be attributed to the expression of a specific hormone receptor in certain cells of the brain. If researchers inserted this receptor's gene and regulatory regions from a Prairie Vole so it was expressed in appropriate cells of the Montane Vole, which of the following would most likely occur?
a. Montane voles would become monogamous because they would be able to receive hormone signals in the same way as prairie voles.
b. Montane voles would be promiscuous some of the time, and monogamous the rest of the time depending on the female vole.
c. Montane voles would not mate because the monogamy gene would cancel out the promiscuity gene.
d. Montane voles would remain promiscuous because they express a gene for promiscuity.

For their summer holiday, jane and her family are visiting places surrounding the mediterranean sea. which type of biome is jane and her family visiting? a. rainforest b. shrubland c. tundra d. coniferous forest

Which statement best describes a keystone species? o a. it has littlelmenetic variation. it has an extremely high population. 0 b. 0 c. it remains unaffected by all environmental changes. od. it has a strong influence on the ecosystem. 0 e. it's the first species to populate a new ecosystem.

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