The diagram below shows the position of the pelvis and legs of Homo sapiens, Australopithecines and chimpanzees (Pan troglodytes) - VCE - SSCE Biology - Question 40 - 2023 - Paper 1
Question 40
The diagram below shows the position of the pelvis and legs of Homo sapiens, Australopithecines and chimpanzees (Pan troglodytes). The carrying angle for each is sho... show full transcript
Worked Solution & Example Answer:The diagram below shows the position of the pelvis and legs of Homo sapiens, Australopithecines and chimpanzees (Pan troglodytes) - VCE - SSCE Biology - Question 40 - 2023 - Paper 1
Step 1
A. Homo sapiens have the smallest carrying angle of the skeletons shown.
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Answer
This statement is correct as Homo sapiens exhibit a smaller carrying angle compared to the other species, indicating adaptations for bipedal locomotion.
Step 2
B. The carrying angle in Australopithecines reflects their center of gravity to be shifted forward.
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Answer
This statement is misleading. While Australopithecines have a larger carrying angle, it does not solely indicate a forward shift of the center of gravity; other anatomical features must be considered.
Step 3
C. The carrying angle of the Pan troglodytes suggests that, of the three species, it is the best suited to bipedalism.
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Answer
This statement is false. The Pan troglodytes, or chimpanzees, have a carrying angle that is more suited for their quadrupedal locomotion rather than efficient bipedalism.
Step 4
D. The large carrying angle of Australopithecines supports bipedalism.
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Answer
This statement is correct. The larger carrying angle in Australopithecines indicates adaptations that support bipedalism, as it allows for a more upright posture.
