Sentence Correction (SC) | Re: Tropical bats play important roles in the rain forest

Definitely a trick used by GMAC here, to test on not so known information about"semicolons"

As Manhattan says: a minor use of the semicolon is to separate items that themselves contain commas

So I think there are two things to keep in mind when it comes to semicolons:

1. Used to connect two independent clauses
2. Used to present a list that involves number of comma's to separate the items in the list
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