The answer to this question is DNA replicates by a template mechanism or should have a replication machine. Watson and Crick suggested that all organisms must reproduce their DNA with exceptional correctness before each cell division.
Answer:
To provied housing for the poor
To provide help for urban renewal projects
Explanation:
Railroads had a very large positive impact on <span>western settlement in the late 1800s</span> in the US, since this made it far easier and more effective to transport both humans and goods across large bodies of land.
Tell people about history
