Plant Response Mechanisms
Books: Barron's, AP Biology
Biology, The Realm of Life; Ferl and Wallace
Images
"phloem" biologie.uni-hamburg.de
"pressure flow" dbbe.fcen.uba.ar
"apical dominance" answers.com
"gibberellins" 4e.plantphys.net
"phototropisim" agen.ufl.edu
"gravitropism" nature.com
"venus fly trap" science.howstuffworks.com