Its IV. forests are habitat for two-thirds of terrestrials species....................
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.
The scientist that thought he had proven that plants obtain their nutrients from water rather than soil is Van Helmont.
