NATURE STUDY
'(<a href="http://www.j-archive.com/media/2008-01-03_J_24.jpg" target="_blank">Sarah of the Clue Crew holds a magnifying glass to the underside of a large mushroom in the <i>Jeopardy!</i> lab.</a>)  Like fish, mushrooms have <a href="http://www.j-archive.com/media/2008-01-03_J_24a.jpg" target="_blank">these</a>, but in the mushroom they're where the spores are produced'
gills