Answer:
carbon dioxide
Explanation:
carbon dioxide is released into atmosphere
T cells
The immune response to a transplanted organ consists of both cellular (lymphocyte mediated) and humoral (antibody mediated) mechanisms. Although other cell types are also involved, the T cells are central in the rejection of grafts. The rejection reaction consists of the sensitization stage and the effector stage.
Photosynthesis is the process plants undergo when they use carbon dioxide and sunlight to produce energy.
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