Based on this cladogram, which pair of organisms are likely to share the most similarities with each other? The image depicts a cladogram with numbered and lettered branches. The image includes clades 1, 3, and 7 on one fork of the tree, and clades 2 and 4 on the other. From clade 1 moving up the tree, the first fork is clade 2 which ends in organism group D. From clade 2, clade 5 diverges, ending in organism group C. Clade 1 continues up the tree, ending in organism group A. Toward the end of clade 1, clade 4 diverges, ending in organism group B. On the remaining branch of the tree, moving upward from clade 1, clade 3 diverges, ending in organism group E. From clade 3, clade 6 diverges, ending in organism group F. Clade 7 diverges from the main branch, ending in organism group G, and the main branch ends in organism group H.

B and E
C and F
A and C
D and H

The diagram shows a fossil of an ancient whale skull and a skull of a present-day whale. the ancient whale is extinct and is believed to be an ancestor of the present-day whale. what do these skulls most likely show that supports darwin’s theory of evolution? all populations can adapt and survive. only some organisms have a common ancestor. populations change slowly over time. populations rapidly become extinct.

Read the following scenario to answer the following question. 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. when most populations of a wide-ranging amphibian species are lost and the few remaining populations are widely separated, we expect to see that a. the founder effect becomes increasingly important b. microevolution no longer occurs c. gene flow between populations is reduced d. artificial selection becomes a greater factor in microevolution

Which of the following statements most accurately describes convergent evolution? the process in which two similar species evolve separately from each other and share similar characteristics the process in which a single species evolves into two or more new species the process in which two entirely different species evolve in response to each other the process in which two different species evolve separately from each other but still share similar characteristics