The correct statement is,
But in fact, the truth may be hidden in this ordinary-looking piece of meteorite known as Rock 84-001.
The report discusses the possibility of life on Mars and explores the life's probable origins. The thesis statement brings our attention to the main topic of the report, which indicates that the report will focus on the piece(s) of evidence found in this specific meteorite.
Atoms bond together to make larger molecules or elements.
Mutations result from an error in DNA replication, should it be from an alien source (like radiation) or simply a mistake in replication.
Migration of organisms to a new population would alter the DNA by adding new genes, but it would not mutate them.
