Exam 19: The Evolution of Vertebrate Diversity

The last common ancestor shared by humans and chimpanzees lived about

Which character of vertebrates is associated with colonization of land?

Jaws appear to have evolved from

The earliest hominin to be found outside of Africa belongs to which species?

Which extinct hominin first appeared about 1.9 million years ago and had a larger brain than Homo habilis, its immediate predecessor?

Which of the following would a shark not be able to detect with its lateral line system?

The vertebrate group that describes all jawed vertebrates with two pairs of limbs is the

After reading the paragraphs below, answer the questions that follow. Bipedalism is one of the most important characteristics of hominin evolution. The appearance of bipedalism led to anatomical changes that are considered to be distinguishing characteristics of hominin fossils. The evidence for bipedalism is supported by fossil evidence from more than 4 million years ago and 3.6-million-year-old footprints in volcanic ash. Recently, however, scientists have focused on the link between tooth structure and diet in the evolution of the early hominins, specifically in Australopithecus species. Detailed studies of hominin dental features have provided evidence of an important dietary shift that led to adaptive radiation within this genus. Most of the evidence comes from analyses of tooth size and shape, microscopic wear patterns on teeth, and jaw structure. The evidence suggests that fibrous plant materials became more important through the Pliocene, perhaps as critical components in the diet of some species. -Evidence from fossil dentition suggests that Australopithecus species

Use the figure below to answer the following questions. -Suppose scientists discovered an organism that had a head with a brain at the anterior end of the dorsal nerve, eyes and other sensory organs, a skull, and a vertebral column. The organism could not be

Compared to other hominins, modern Homo sapiens display a particular ability for

Which of the following organisms is a monotreme?

Use the figure below to answer the following questions. -Which of the following clades is most directly related to lancelets?