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All cells are similar in composition, form, and function. The evolution of
specialized cell features is responsible for the great diversity of life forms. A brief
treatment of the cell follows. For full treatment, see macropaedia: Cells: Their
With appropriate staining techniques, such chromophobe tumours often prove to
consist of amphophils — cells that are capable of secretory activity.
Inappropriately high amounts of vasopressin may also occur in the plasma and
urine of ...
Synthesized in roots, cytokinins move upward in the xylem (woody tissue) and
pass into the leaves and fruits, where they are required for normal growth, for cell
differentiation, and, in conjunction with auxin (another plant hormone), to promote
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The New Encyclopaedia Britannica (Encyclopaedia)User Review - Not Available - Book Verdict
For virtually all its 238 years,Britannica has ruled the shelves as a peerless general encyclopedia. Reviewers have consistently given it high marks for most of the 12 criteria identified inKister's ... Read full review