What is correct for conifers?
$I$ - Leaf is like a needle,$II$ - Thick cuticle,$III$ - Thin cuticle,$IV$ - Sunken stomata,$V$ - Stomata absent

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:

$A$ transverse section of a plant organ shows vessels but does not show companion cells. This organ may belong to:

In gymnosperms,male gametes are discharged near the mouth of archegonia by:

In paddy fields,cyanobacteria are found in the vegetative parts of ..........

Ovules are borne on