Скачать или смотреть Phylum Annelida characters and classification explain

Phylum Annelida general characters and classification up to order full explained in Hindi by Muskan perween.

Annelids are also known as segmented worms . Annelids are different from those unsegmented worms i.e. flatworms (platyhelminthes) and roundworms (aschelminthes) in many aspects. They are well organized animals compare to other previous phyla . First animal group having close blood vascular system.

Phylum Annelida Divided into four classes on the basis of their morphological characters:
1) polychaeta - e.g. Nereis a.k.a. clamworm
2) oligochaeta - e.g. pheretima a.k.a. earthworm
3) hirudinaria - e.g. hirudinea a.k.a. leech
4) archiannelida - polygordius
Notes with the appropriate diagrams.
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