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a mixture of enzymes and other substances secreted by the exocrine cells of the pancreas.
the cylinder of parenchyma found from the centre of the stem to the inside of the vascular...
the water that is found underground in soil pore spaces and in the cracks and spaces within rock...
an organelle that occurs in the cytoplasm of both plant and animal cells. It is made from stacks...
thin-walled or slightly strengthened, elongated phloem cells that conduct food substances.