In gymnosperms,the cones are ...... .

Pollination of pollen grains in $Pinus$ takes place at

Given below are two statements: One labelled as Assertion $A$ and the other labelled as Reason $R$:
Assertion $A$: In gymnosperms,the pollen grains are released from the microsporangium and carried by air currents.
Reason $R$: Air currents carry the pollen grains to the mouth of the archegonia where the male gametes are discharged and pollen tube is not formed.
In the light of the above statements,choose the correct answer from the options given below:

Identify the incorrect pair for Gymnosperms from the following.

Leaves in $Cycas$ show

In which of the following is the gametophytic phase reduced,short-lived,and limited to the production of gametes?