[问答题]
1.Compare and contrast forests and marine phytoplankto +laj)j)krms;7hfy t xz(*:fbn in theirwp-r t tdco0rf+uw 15(awhk26 role in the carbon c f 1ttd-uhk+ wwc60rpo(r w52aycle.
2.Describe how aquatic autotrophs absorb carbon dioxide from the surroundings.
