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Cross section of a root: axis of the plant which grows in the opposite direction from the stem, maintain the plant in place and absorbs nutrients. See more

Cross section of a root - Visual Dictionary - ...

Urinary system: set of organs producing urine in human beings, comprised chiefly of the kidneys, ureters, bladder and urethra. See more

Urinary system - Visual Dictionary - Copyright © 2005-2016 - ...