Question

List three anatomical differences between chimpanzees and humans, and explain how these changes facilitated walking upright.

A. Larger brain, opposable thumbs, bipedalism.
B. Fur-covered bodies, prehensile tail, omnivorous diet.
C. Shorter limbs, forward-facing eyes, elongated torso.
D. Gills, webbed feet, nocturnal vision..

Answer 1

Three anatomical differences between chimpanzees and humans that facilitated walking upright are shorter limbs, forward-facing eyes, and an elongated torso.

Step-by-step explanation:

Three anatomical differences between chimpanzees and humans are:

1. Shorter limbs: Humans have shorter limbs compared to chimpanzees. This facilitated walking upright as shorter limbs provide better balance and stability while walking on two legs.
2. Forward-facing eyes: Humans have forward-facing eyes, which allows for better depth perception and spatial awareness. This is important for walking upright as it helps in navigating the environment more accurately.
3. Elongated torso: Humans have an elongated torso, which shifts the center of gravity towards the pelvis. This helps in maintaining balance while walking upright.