Biology, asked by sandas8715, 1 year ago

Defferentaite betweeen pollen grain of pinus and ephedra

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Answered by hsjd1
0
Cycas and Ephedra are dioecious while Pinus is a monoecious plant. Cycas ..... Each pollen grain develops a thick exine and thin inline.
Pollination of pollen grains in Pinus takes place at. A) One celled stage. B) Two celled stage. C) Three celled stage.

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