Question
Lack of Iron in the photic zone of the open ocean restricts the size of plankton populations. Iron is what kind of factor for marine plankton?
Answers
GuruBlue
This site is very interesting.
http://ublib.buffalo.edu/libraries/projects/cases/iron_case/geritol.html
http://ublib.buffalo.edu/libraries/projects/cases/iron_case/geritol.html