Question 15 1 pts The statement "Homo sapiens is a polytypic species" means modern humans can be classified scientifically into three or more distinct biological races people look very different from other species of animals like panda bears and chickens humans look different from one another but are all part of the same species there are many different primate species on Earth today Question 16 1 pts In biological usage, the term Ethnic Ancestry refers only to IQ refers to the geographically patterned phenotypic variation within the Human Race refers to a person's gender identity refers exclusively to skin color
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1. which of the following is NOT a reason why we say that human races do not exist on a biological level? . recognizing race leads to social inequalities . our species is very genetically homogenous . because of culture we all share a similar basic environment 2. which of the following skeletal features are common to all primates? . clavicle . bowl-shaped pelvis . high domed forehead 1. How is the location of the vocal tract of homo sapiens different from that of chimpanzees? explain the difference. 2. does the fact that modern Africans have the greatest diversity of all human populations in their mitochondrial DNA support the multiregional hypothesis or African replacement model (RAO)? why?
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Which of the following is TRUE regarding the possible interbreeding between the human and Neanderthal species? a. A limited amount of variation has been passed from Homo neanderthalensis to Eurasian populations of Homo sapiens as a result of interbreeding that probably took place in the Near East at some point within the past 100,000 years. b. There is no evidence of hybridization between Neanderthals and modern humans. Both bone mtDNA and genomics studies ruled out such interbreeding. c. Modern humans are more closely related to Neanderthals than to early Homo sapiens since there was extensive interbreeding between humans and Neanderthals about 35,000 years ago. d. Neanderthals share a common ancestor with humans about 250,000 years ago. Both species originated in Africa and migrated to Europe and Asia about 100,000 years ago.
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For questions 11–15, match the evolutionary evidence in the key to the description. Choose more than one answer if correct. Key: a. biogeographical evidence b. fossil evidence c. biochemical evidence d. anatomical evidence e. developmental evidence It’s possible to trace the evolutionary ancestry of a species.
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