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In gymnoperms, the pollen chamber repres...

In gymnoperms, the pollen chamber represent:

A

the microsporangium in which pollen grains develop

B

a cell in the pollen grain in which the sperms are formed.

C

a cavity in the ovule in which pollen grains are stored after pollination

D

an opening in the megagametophyten through which the pllen tube approaches the egg

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