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Grade: 12

                        

the plant Zostera do not have exine and filament then how it is protected from external damages in order to prevent the damages the pollen sac is there then what is the use of exine

5 months ago

Answers : (1)

Arun
24742 Points
							
They contain the generative cell or the two sperm cells imbedded in the vegetative cell's cytoplasm, which is surrounded by a tough, protective shell (cell wall and outer exine layer) to ensure the survival of the cells during their transport by wind, insects or mammals to the stigma.
5 months ago
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