Water present in soil is drawn by the roots of a plant through the xylem to the leaves of the plant. plants like the large sequoia tree can draw water from the roots to the highest leaves almost 310 feet high without any pumping mechanism in the plant. which explanation best describes how this process is possible?

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

Leila has dimples because she received a gene copy from her father that coded for dimples. this means that dimples are an example of a trait that is

Which codon is the code for the amino acid histidine (his)?