Africa, Australia, etc because they are the oldest ones.
Paleontology is the study of the history of life on earth as based on fossils.
Answer:
that aren't sex chromosomes ( dont know which one because there are not any answer choices)
Explanation:
Look at these images, the oldest is at the bottom, the newest is at the top, so the drawings are next to time zones are properly set up, so next to the time scale is when the drawing next to it was made.
Sorry I don't know just try to graduate