BANANAS
'(<a href="http://www.j-archive.com/media/2010-06-29_J_10.jpg" target="_blank">Kelly of the Clue Crew reports from a banana plantation in Ecuador.</a>)  The <a href="http://www.j-archive.com/media/2010-06-29_J_10a.jpg" target="_blank">string</a> inside a banana carries nutrients such as sugars between parts of the plant; it's called the phloem, from the Greek word for this tough stuff that covers trees'
bark