Question

Which of the following statements is true of Homo erectus evolution?

a) They remained largely unchanged anatomically until about 800.000-600,000 years ago.
b) Their brain size increased progressively beginning before 1 million years ago on up until they evolved into modern humans.
c) neither of the above

Answer 1

Homo erectus remained largely unchanged anatomically until about 800,000-600,000 years ago, including their brain size which was similar to that of modern humans.

Step-by-step explanation:

Homo erectus evolution can be accurately described with the statement: a) They remained largely unchanged anatomically until about 800,000-600,000 years ago.

Throughout their existence, Homo erectus exhibited relatively little change in their anatomical features, including their brain size. It was not until around 800,000-600,000 years ago that significant changes in their anatomy began to occur.

This statement is supported by the fact that Homo erectus had a brain size similar to modern humans, averaging 775 to 1,100 cubic centimeters, which is comparable to the 1,130 to 1,260 cubic centimeters seen in modern human brains. This suggests that their brain size remained relatively stable over time.