1.) The chimpanzee skeleton is bent down, leaning, they have long hands, which help them walk. The ancient hominid skeleton and the human skeleton have similar nose structure, large rib cage, thick arms, and straight body. They have similar physical features of the body such as hands, knees, legs, shoulders. Both hominid and human skeleton walk with their feet, which is straight whereas the chimpanzee’s feet are a little curved, which help them move and walk around. Thus, since the hominid structure and the human skeleton have similar skeletal structures they move around in similar ways.
2.) The Neanderthal is more similar to the modern human skeleton because they have the same physical features, composition and skeletal structure as modern humans. Both of them have the same hands, feet, shoulders, legs, straight body and feet, which helps them walk around whereas the chimpanzees move around with their long hands and curved feet. However, since the chimpanzees have curved feet and long arms this helps them climb trees and branches whereas the neanderthal and human skeleton have straight feet, which allows them to have an upright body and walk on the ground.
3.) Human, chimps, and bonobos last shared a common ancestor 7-5 million years ago and I was able to tell by looking at the family tree of living and extinct
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As generations passed by overtime the long fingers of the bats developed into longer wings through the process of webbing, which made the bats have longer wings in order to fly. However, eagles evolved from a birdlike common ancestor whereas bats evolved from a recent ancestor, which is a mammal. Both species had different common ancestors, which shows the difference in their wing bone structure. Thus, we call these structures homologous organs because both the bats wing and birds wing was inherited by their last common