Needle-like foliage leaves are found in

In which one of the following do male and female gametophytes not have a free-living independent existence?

The chief water conducting elements of xylem in gymnosperms are

Which of the following describes the leaf type in Gymnosperms?

The recently discovered anti-cancer drug is obtained from:

Assertion: $Ginkgo biloba$ is a living fossil.
Reason: Organisms which have persisted and remained unchanged for the past several million years while their relatives disappeared.