Answer:
The reconstruction was successful in healing the United States because it granted legal status to african americans & gave them their freedom along as caused many new laws & amendments to be set into place.
Answer:
Genetics
Continental drift
Explanation:
The genetics knowledge which is a library of traits serves as an information center which can be used to analyse evolution was not available to Darwin.
The knowledge of continents being a giant raft floating on molten rock that could fit into a puzzle was not available to Darwin that could solve the solve the existence of oddly similar terrestrial species on separate continents.
