To fill in the question marks in the table of migrations of Homo sapiens, we can consider the known patterns of human migration.
Given the timeline:
- 200,000 years ago: Appear in Africa
- 40,000 years ago: Arrive in Europe
- 20,000-60,000 years ago: (Question Mark)
- 15,000 years ago: (Question Mark)
The migration patterns suggest that after arriving in Europe, Homo sapiens would have moved outward.
- Around 60,000 years ago, Homo sapiens are believed to have migrated to Asia.
- The next significant migration would have occurred later, around 45,000 years ago, when they migrated to Australia and the Pacific Islands.
Finally, Homo sapiens arrived in the Americas approximately 15,000 years ago.
Based on this reasoning, the sequence of migrations would be:
- 20,000-60,000 years ago: arrive in Asia
- 15,000 years ago: arrive in the Americas
Therefore, the correct answer to replace the question marks in the table is:
b. arrive in Asia, arrive in the Americas.