I believe the answer is:
for there's a swallow; Come one swallow, his mate will follow
Internal rhymes refers to a type of rhyme that occurs between other phrases across the lines (whcih is why it is often referred to as middle rhymes) . The word 'swallow' is rhymed with follow,and it's located between two lines with similar sounding 'llow' at the end.
The correct answer is South America
<span>Some geographers estimate that around 300 C.E., Polynesians may have reached the western coast of South America, where they learned about the sweet potato. It has never been completely proven, but there is a lot of evidence in favor of this theory.</span>
