Questions in diversity-of-life

Select	Question
	Two distinct generations in a single life history are common in
	Pteridium possess
	Placenta in Dryopteris is the place of attachment of
	In Dryopteris, the sori are borne
	In Pteridophytes/ Dryopteris meiosis occurs at the time of
	In Dryopteris, the antherozoids are
	Which one controls dehiscence of sporangium in Dryopteris
	Presence of ciliated antherozoids in Dryopteris indicates
	Neck canal cells in Dryopteris are
	Brown hair found at the base of Pteris leaves are