In $Ginkgo$,the male gametes are ...... .

Assertion $A$: Gymnosperms occupy an intermediate position between Pteridophytes and Angiosperms. Reason $R$: In Gymnosperms,the ovules are naked and develop into naked seeds after fertilization. Which option is correct for Assertion $A$ and Reason $R$?

Most gymnosperms are

Gymnosperms do not have

In $Pinus$,the terminal portion of the microsporophyll of the male cone is called:

Secondary wood of $Cycas$ is devoid of