LAB_14 - Lab 14 Concept Review Questions Pages 409-410 1...

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Lab 14 Concept Review Questions Pages 409-410 1. When studying the brains of our fossil relatives, we rely on indirect evidence such as the cranial capacity instead of direct evidence, such as brain tissue, because brain tissue does not fossilize. The measurements of a fossil species’ cranial capacity can be used to estimate the brain size and the indentations inside the cranium can be used to estimate sizes of different brain regions. 2. Tool use is not unique to members of our own human lineage, and is actually a common behavior of primates. One animal that is not a member of our own human lineage that uses tools are nonhuman apes. 3. The kind of bipedalism practiced by a living chimpanzee is called:
4. In a biped, the foramen magnum is positioned more:
5. The S shape of the human vertebral column is formed by two curves. These two curves are found in the thoracic and lumbar regions. 6. The human pelvis is different from the pelvis of a non bipedal primate as humans have a bowl-shaped pelvis in addition to a broad, short ilia. Non bipedal primates tend to have a flatter pelvis in addition to having a narrow and tall ilia. 7. Bipedal adaptations that can be found in the human femur include the femur angles medially to the knee and overall, the femur is long. 8. The savanna hypothesis is bipedalism was selectively favored in our ancestors when savanna grasslands expanded and forests receded.

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