Developing pollen obtains its nutrition from

From where does the developing embryo obtains its nourishment?

Assertion Epiphytes are attached on the other plants. Reason They obtain their nutrition from host plants.

Assertion :- Inner most layer of microsporangium or pollen sac, tapetum is of physiological significance. Reason :- All kind of nutrition of developing pollen grains go through tapetum.

Assertion :- Development of pollen grains begins only after pollination. Reason : Development of pollen grain takes place only on stigma

Assertion :- Development of pollen grains begins only after pollination. Reason : Development of pollen grain takes place only on stigma

Describe the process of development of pollen grains in angiosperms starting from PMC.

Organism which obtains their nutrition from dead and decaying matter (detritus) is called