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outgrowths of neurons (nerve cells) that transmit nerve impulses towards the cell body.
minute pores in the epidermis of a leaf or stem which allows for movement of gases and water...
(also called elimination or defecation) the process whereby undigested food remains are expelled...
the main blood vessel that returns deoxygenated blood from the head and thorax to the right...
the inner most layer of the cortex of roots and some stems of plants.
diet which contains all the nutrients needed by the body in the correct quantities and...