Which of the Following Statements About Human Evolution is Correct

Question

Which of the following statements about human evolution is correct?
A)Modern humans are the only human species to have evolved on Earth.
B)Human ancestors were virtually identical to extant chimpanzees.
C)Human evolution has occurred within an unbranched lineage.
D)The upright posture and enlarged brain of humans evolved simultaneously.
E)Fossil evidence indicates that early anthropoids were arboreal and cat-sized.

Accepted Answer

Fossil evidence shows that early anthropoids, or primates that include monkeys, apes, and humans, were arboreal (living in trees) and cat-sized. This suggests that the evolution of primates involved adaptations to arboreal environments before eventually evolving into terrestrial (living on land) species like humans. None of the other statements are correct: A) there were other human species that evolved on Earth, including Neanderthals and Denisovans; B) human ancestors and chimpanzees diverged from a common ancestor millions of years ago and are not virtually identical; C) human evolution has occurred within a branched lineage with multiple species; D) the upright posture and enlarged brain of humans evolved at different points in time.