Questions in diversity-of-life

Select	Question
	Pheretima posthuma is highly useful as
	Earthworm possesses hearts
	Earthworm helps farmers by
	Enteronephric nephridia of Earthworm are
	In earthworm, ovary is situated in segment
	Blood of Pheretima is
	Suctorial mouth occurs in
	The animal which does not show any metamorphosis of larval stage is
	One direct use of earthwarms to farmers is
	One of the oldest uses of earthworm is as