Anth 260 Quiz 21 Early Hominins

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Washington State University *

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Anthropology

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Jan 9, 2024

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WSU Global Campus ANTH 260 Chapter 21 Quiz Early Hominins Question 1: Which is not a feature of bipedalism? An S-shaped spine X Foramen magnum at the back of the skull An arched foot with non-grasping toes Femur angled inward Question 2: One important difference between Ardipithecus and Australopithecus is: Foramen magnum on back of skull X An opposable big toe Bipedal pelvis Not adapted to knuckle walking Question 3: Australopithecus and Paranthropus are distinguished primarily based on their: Brain size Sexual dimorphism X Dietary adaptations Bipedality Question 4: The important fossil hominin specimen nicknamed “Lucy” ____: Is named after the Peanuts character X is a 3.2 million year old autralopithecine was clearly not a biped was found in Asia Question 5: Features showing that Australopithecus afarensis is a hominin include: A very large brain Lack of a tail X Bipedalism Thin molar enamel

Question 6: Imagine you have found a fossil skull with an ape-sized brain, sagittal crest, very large back teeth, and large zygomatic arches (cheekbones). Based on this information, this is most likely a specimen of ____. Sahelanthropus tchadensis Au. Afarensis A neandertal X A robust australopithecine Question 7: Genetic evidence indicates that the last common ancestor of humans and chimpanzees lived between approximately ____ years ago. 2 and 1 million 4 and 2 million 5 and 3 million X 5 and 7 million Question 8: A surprising finding regarding Ardipithecus ramidus includes: X evidence of bipedalism in combination with divergent big toe Evidence of the use of fire Human-like hand morphology Fossil evidence of language

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