Please capitalize where necessary: this wave brought the ancestors of the amerindians of central and south america.
A: This wave brought the ancestors of the Amerindians of Central and South America.

Please capitalize where necessary: but that was exactly what i was after - where else can you see farmers working the fields with horses or the whole family collaborating together to harvest potatoes?
A: But that was exactly what I was after - where else can you see farmers working the fields with horses or the whole family collaborating together to harvest potatoes?

Please capitalize where necessary: similar games to micro olympics
A: Similar games to Micro Olympics

Please capitalize where necessary: more troubling is the upcoming book by ben mezrich (the ben mezrich who lionized the mit blackjack card-counting team and facebook founders) straight flush.
A:
More troubling is the upcoming book by Ben Mezrich (the Ben Mezrich who lionized the MIT Blackjack Card-Counting Team and Facebook founders) Straight Flush.