Which of the following bones can provide evidence that a fossil animal was bipedal?
A) humerus, fingers
B) a hand with an opposable thumb
C) ear bones (related to balance)
D) pelvis, femur, skull

Question

Quizplus · Accepted Answer

The pelvis, femur, and skull can provide evidence for bipedalism. The shape of the pelvis can indicate the position of the legs in relation to the body, while the femur's angle can show the position of the knees. The skull can provide evidence for a more upright and balanced posture. The Humerus and fingers may not provide accurate evidence while a hand with opposable thumb is generally associated with primates and may not be specific evidence for bipedalism. Ear bones can provide evidence for balance, but not necessarily for bipedalism.

Which of the Following Bones Can Provide Evidence That a Fossil