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Base your answers to questions 71 and 72 on the diagram below that shows variations in the beaks of finches in the Galapagos Islands and on your knowledge of biology. For Teacher Use Only Large ground finch Medium ground finch Pr Mainly animal food All animal food Large tree finch i ng t ip s Mainly plant food a s p i n g b ill s Sharp-billed ground finch ill s Gr E d g e cru sh in C r u s hi n g b g B it Small ground finch Vegetarian finch Small tree finch obing bills Probing Cactus finch Woodpecker finch Warbler finch From: Galapagos: A Natural History Guide 71 The diversity of species seen on the Galapagos Islands is mostly due to (1) gene manipulation by scientists (2) gene changes resulting from mitotic cell division (3) natural selection (4) selective breeding 71 72 State one reason why large ground finches and large tree finches can coexist on the same island. [1] _______________________________________________________________________ _______________________________________________________________________ Living Environment–June ’09 [26] 72
