Fractionation of carbon isotopes in oxygenic photosynthesis values more similar to C3 plants. In contrast to terrestrial plants, where CO diffusion in air is relatively fast and typically not limiting, diffusion of dissolved CO in water is considerably slower and can often limit carbon fixation in phytoplankton. As gaseous CO is dissolved into aqueous CO, it is fractionated by both kinetic and equilibrium effects that are temperature-dependent. Relative to plants, the dissolved CO source for phytoplankton can be enriched in C by about 8‰ from atmospheric CO. Isotope fractionation of C by phytoplankton photosynthesis is affected by the diffusion of extracellular aqueous CO into the cell, the
I Know What You Need please his abusive parents despite his amazing gift, mainly by winning them large gambling jackpots), when his plans are ultimately brought to ruin, he is revealed less as a product of anti-elitism and more as a childish, murderous coward, morally corrupt and self-serving. Knowing that his magic will always keep a (somewhat small) emotional hold on her, Elizabeth crushes his voodoo doll of her, destroying the small amount of pity she still feels for him. I Know What You Need "I Know What You Need" is a short story by Stephen King, first published in the September 1976 issue of