25 Jan Use the photos the following photos to compare Lucy (Australopithecus afarensis) to chimpanzees and humans. Chimp femur (left) Lucy femur (middle) Hum
Use the photos the following photos to compare Lucy (Australopithecus afarensis) to chimpanzees and humans.
Chimp femur (left) Lucy femur (middle) Human femur (right)
Compare the features of the femur of Australopithecus afarensis (Lucy) to an ape and human.
Femur Features
Ape
Chimpanzee
Lucy
Australopithecus afarensis
Human
Bicondylar angle:
Angled or straight
Femoral head:
Angled upward or perpendicular to the shaft
Which is higher:
Femoral head higher, greater trochanter higher, both equally high
Size or presence of linea aspera
Present, absent, large, small
Very hard to see in the photos:
Answer is “present”
Overall, is the A. afarensis pelvis and femur more similar to apes or to humans?
Question 3 options:
A)
the pelvis is more similar to humans, but the femur is more similar to apes
B)
both are more similar to apes
C)
the pelvis is more similar to apes, but the femur is more similar to humans
D)
both are more similar to humans
Question 4 (1 point)
Describe the evidence from the pelvis and femur for bipedalism? Explain
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