Sources

http://masspictures.net/wp-content/uploads/2014/04/8806457-cute-rabbits.jpg
https://howlingforjustice.files.wordpress.com/2009/10/wolves.jpg
http://images.tutorvista.com/cms/images/123/structure-of-chloroplast11.PNG
http://upload.wikimedia.org/wikipedia/commons/f/fd/Photosynthesis_equation.svg
https://confluence.crbs.ucsd.edu/download/attachments/33490357/cellular_respiration_modified.jpg?version=1&modificationDate=1310150975000&api=v2
http://faculty.clintoncc.suny.edu/faculty/michael.gregory/files/bio%20101/bio%20101%20lectures/cellular%20respiration/cellul13.gif
Science textbook