Stem and its modification
Introduction It is the aerial part of the vascular plant. In botany it means, the plant axis that bears buds and shoots with leaves and, at its basal end, roots....
Phylum: Annelida (segmented worms), its classification and characteristics
multicellular, triploblastic, bilaterally symmetrical with system grade of body organization. mostly aquatic, found in sea water or fresh water, some are terrestrial and burrowing, few...