hominim evolution

Question 1

how does fossil evidence support the theory of hominim evolution over the past 5 million years

Answer 1

By studying fossilized bones, scientists learn about the physical appearance of earlier humans and how it changed

Question 2

describe the skull adaptations to bipedalism found in hominms.
Why are these significant?

Answer 2

the foreamen magnum is the hole in the skull where the spinal cord connects to the brain.

this is significant because allowed hominids to free their arms completely, enabling them to make and use tools efficiently, stretch for fruit in trees and use their hands for social display and communication.

Question 3

discuss the evolutionary trends observed in hominin skulls including changes in cranial capacity, skull shape, teeth size.

Answer 3

• smaller more even teeth
  -larger brain case
  -skull is more rounded and higher
  -teeth became smaller