The continents that are now separated by the Atlantic Ocean once formed a single landmass.
All of our current continents were once connected as one single landmass named Pangea. Pangea broke apart into different continents. Fossils found in Africa have been found in South America, and etc.
Answer:
it's curve1000 for this question
Because the soil didn't have the same nutrients it has now due to lack of decomposition of other plants and animals.
The answer is A because with rna G and C always go together and A and U always go together
