Attribution pages at wikipedia.org for fruit images:

Apple:
     http://en.wikipedia.org/wiki/File:Red_Apple.jpg
Avocado:
     http://en.wikipedia.org/wiki/File:Persea_americana_fruit_2.JPG
Banana:
     http://en.wikipedia.org/wiki/File:Banana-Single.jpg
Cantaloupe:
     http://en.wikipedia.org/wiki/File:Cantaloupes.jpg
Cherry:
     http://en.wikipedia.org/wiki/File:Cherry_Stella444.jpg
Grape:
     http://en.wikipedia.org/wiki/File:Table_grapes_on_white.jpg
Grapefruit:
     http://en.wikipedia.org/wiki/File:Citrus_paradisi_(Grapefruit,_pink)_white_bg.jpg
Honeydew:
     http://en.wikipedia.org/wiki/File:Honeydew.jpg
Kiwifruit:
     http://en.wikipedia.org/wiki/File:Kiwi_(Actinidia_chinensis)_1_Luc_Viatour_edit.jpg
Lemon:
     http://en.wikipedia.org/wiki/File:Lemon.jpg
Lime:
     http://en.wikipedia.org/wiki/File:Backyard_limes.jpg
Nectarine:
     http://en.wikipedia.org/wiki/File:White_nectarine_and_cross_section02_edit.jpg
Orange:
     http://en.wikipedia.org/wiki/File:Orange_and_cross_section.jpg
Peach:
     http://en.wikipedia.org/wiki/File:Autumn_Red_peaches.jpg
Pear:
     http://en.wikipedia.org/wiki/File:Alexander_Lucas_10.10.10.jpg
Pineapple:
     http://en.wikipedia.org/wiki/File:Pineapple_and_cross_section.jpg
Plum:
     http://en.wikipedia.org/wiki/File:Plum_on_tree02.jpg
Strawberry:
     http://en.wikipedia.org/wiki/File:Strawberry_gariguette_DSC03063.JPG
Tangerine:
     http://en.wikipedia.org/wiki/File:TangerineFruit.jpg
Watermelon:
     http://en.wikipedia.org/wiki/File:Watermelons.jpg
