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51) Which of the following consistent with the out-of-Africa hypothesis? A)

Question : 51) Which of the following consistent with the out-of-Africa hypothesis? A) : 1773165

51) Which of the following is consistent with the out-of-Africa hypothesis?

A) Modern Homo sapiens can trace their origin back to Neanderthals.

B) Modern Homo sapiens can trace their origin back to Homo erectus.

C) Interbreeding between early hominin species in Europe and Asia lead to the distinctive features of modern Homo sapiens.

D) Homo sapiens have a common ancestor with Neanderthal and Homo erectus from Africa but did not interbreed with them.

E) Modern Homo sapiens and Neanderthals have no common ancestor more recent than the first mammals.

52) In what respect do hominins differ from all other anthropoids?

A) lack of a tail

B) eyes on the front of the face

C) bipedal posture

D) opposable thumbs

E) diurnal activity

53) Which of the following groups is classified as Homo sapiens?

A) Neanderthals

B) Cro-Magnons

C) Paranthropus

D) Australopithecus

E) none of the above

Use the following information to answer the question(s) below.

Brown et al. and Morwood et al. reported in 2004 that they had found skeletal remains of a previously unknown type of hominin, now dubbed Homo floresiensis, on the Indonesian island of Flores. These hominins were small (approximately 1 meter tall) with small braincases (approximately 380 cubic centimeters) as compared with other hominins. The remains of H. floresiensis were found alongside handmade stone tools and the remains of dwarf elephants that also inhabited the island, suggesting that H. floresiensis was able both to make tools and to coordinate the hunting of animals much larger than itself. H. floresiensis is estimated to have lived at the site where the remains were found from at least 38,000 years ago to 18,000 years ago.

54) Refer to the paragraph on Brown et al. and Morwood et al. It is speculated that H. floresiensis and H. sapiens may have lived on Flores concurrently. Suppose researchers obtained mitochondrial DNA samples from the H. floresiensis remains, amplified a 1000-base-pair sequence via PCR, and compared it to that of several currently living H. sapiens native to Indonesia, North Africa, and North America. Also suppose H. floresiensis were found to differ from the average Indonesian H. sapiens in 28 base pairs, from the average North African H. sapiens in 51 base pairs, and from the average North American H. sapiens in 53 base pairs, while two randomly selected H. sapiens differed from each other in an average of 21 base pairs. What would you surmise from these data?

A) H. floresiensis and H. sapiens probably did not live on Flores concurrently.

B) H. floresiensis and H. sapiens probably lived on Flores concurrently but did not interact.

C) H. floresiensis and H. sapiens probably lived on Flores concurrently, and H. sapiens killed and consumed H. floresiensis.

D) H. floresiensis and H. sapiens probably lived on Flores concurrently and interbred to some degree.

55) Which of these species is currently thought to have coexisted (at the same time and places) with H. neanderthalensis?

A) Homo erectus

B) Homo ergaster

C) Homo habilis

D) Homo sapiens

56) Which of these species had members who moved out of Africa?

A) Homo erectus

B) Homo ergaster

C) Homo habilis

D) Homo sapiens

E) Homo sapiens and Homo erectus

57) With which of the following statements would a biologist be most inclined to agree?

A) Humans and other apes represent divergent lines of evolution from a common ancestor.

B) Humans evolved from Old World monkeys.

C) Humans represent the pinnacle of evolution and have escaped from being affected by natural selection.

D) Humans evolved from chimpanzees.

E) Humans and other apes are the result of disruptive selection in a species of chimpanzee.

58) Which of these statements about human evolution is correct?

A) The ancestors of Homo sapiens were chimpanzees.

B) Human evolution has proceeded in an orderly fashion from an ancestral anthropoid to Homo sapiens.

C) The evolution of upright posture and enlarged brain occurred simultaneously.

D) Different species of the genus Homo have coexisted at various times throughout hominin evolution.

59) The oldest fossil remains of Homo sapiens found so far date from about _____.

A) 6 million years ago

B) 1.6 million years ago

C) 195,000 years ago

D) 60,000 years ago

E) 16,000 years ago

60) As hominins diverged from other primates, which of the following appeared first?

A) reduced jawbones

B) language

C) bipedal locomotion

D) the making of stone tools

E) an enlarged brain

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