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40 Cards in this Set
- Front
- Back
You find a fossil that you are sure shows evidence of bipedalism. You know this because which of the following anatomical traits is present? |
thighbones that angle in toward the knees
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Based on the research of Philip Reno, early hominins show reduced sexual dimorphism, which is evidence for cooperation and likely for: |
pair bonding.
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Hominins have canines that are: |
small, blunt, and nonprojecting, with no diastema.
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In East Africa robust australopithecines are also called: |
Paranthropus
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Which of the following is an adaptive characteristic of bipedalism? |
longitudinal arch in the foot
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Beginning more than 3 mya, at least two lineages of hominin evolution emerged, one that led to the genus Homo and one that: |
included the now extinct descendents of Au afarensis.
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The Oldowan Complex is a part of the: |
Lower Paleolithic.
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The earliest australopithecines first show up in the fossil record more than: |
4 mya.
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The foundational behavior of Hominini was: |
bipedalism
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Ecological evidence from the site where Ardi was found shows that: |
early hominins lived in a forest.
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An increased ability to see greater distances is one of the adaptations to: |
bipedalism
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Fossils attributed to Australopithecus garhi were found at the Bouri site, in Ethiopia, along with: |
animal bones with cutmarks.
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Owen Lovejoy’s Provisioning hypothesis proposes that: |
monogamy and food provisioning created the necessity for bipedalism.
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Using tools and tool making is an adaptation by hominins as a result of: |
bipedalism
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Humans use their molars for: |
crushing
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The only preaustralopithecine found outside the East African Rift Valley is: |
Sahelanthropus tchadensis.
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The ravine in northern Tanzania where many early hominin fossils have been recovered (often referred to as the “cradle of humankind”) is: |
Olduvai Gorge.
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Ardi was adapted to life in trees and: |
on the ground.
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The discovery of Kenyanthropus platyops was important mainly because: |
it showed diversity in the hominin fossil record 3.5 mya.
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Speech, advanced cognition, and complex material culture: |
do not define a hominin.
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The adaptive radiation of the australopithecines after their split from the lineage that led to early Homo seems to have focused on _________. |
mastication
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Ardi’s intermediate form of bipedality included the use of: |
palms and feet to move along tree branches.
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The earliest hominins probably lived in which kind of environment? |
complex hybrid habitats
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Robust australopithecines were extinct by: |
1mya
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Which of the following is a derived trait of Sahelanthropus tchandensis? |
nonhoning chewing complex
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A hominin is defined as having two obligate behaviors: |
bipedal locomotion and nonhoning chewing complex.
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The Oldowan Complex is a part of the: |
Lower Paleolithic.
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Beginning more than 3 mya, at least two lineages of hominin evolution emerged, one that led to the genus Homo and one that: |
included the now extinct descendents of Au afarensis.
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Australopithecus garhi has been proposed as an ancestor for Homo mainly because: |
it had longer legs relative to arm length than other australopithecines.
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Australopithecus robustus was likely the longest-surviving species of australopithecine in South Africa. It had: |
large molars, a big face, and a sagittal crest.
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The Oldowan Complex includes tools like: |
choppers, cobbles, flakes, and bone tools.
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Australopithecus garhi may be the ancestor of: |
Homo habilis.
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Australopithecus robustus’s large masticatory complex (large molars, face, and muscles) indicate an adaptation: |
to eating foods requiring heavy chewing.
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Fossils attributed to Australopithecus garhi were found at the Bouri site, in Ethiopia, along with: |
animal bones with cutmarks.
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The discovery of Kenyanthropus platyops was important mainly because: |
it showed diversity in the hominin fossil record 3.5 mya.
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Evidence indicating that Orrorin tugenensis was bipedal comes mainly from which part of the skeleton? |
femur (thighbone)
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The diversity of the hominins included increasingly specialized
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diets
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Along with other distinct traits robust australopithecines had __________ adapted for grinding food. |
large temporalis muscles and a sagittal crest
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Thick dental enamel in__________ helps with crushing food. |
australopithecines
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Bipedalism’s advantages over quadrupedalism include: |
both a. and c
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