Canada balsam is an oleoresin obtained from

In the embryo of $Pinus$,rosette cells lie:

What types of leaves are found in gymnosperms?

The endosperm of gymnosperm is

Statement $S$: $Sequoia$ $sempervirens$ is an example of an angiosperm.
Statement $R$: $Eucalyptus$ is the tallest tree in the world.

Mycorrhiza is a symbiotic association between the roots of higher plants and which of the following?