Which is the nutritive tissue of the embryo sac?

Which is not a living tissue?

How is the placenta connected to the embryo?

Which one produces embryo sac?

Reeja, a science student, observed the structure of mature embryo sac comprising antipodals, central cells and egg apparatus. Explain each one of them.

Raman is learning the post fertilization changes of an angiosperm embryo sac with the help of slides. He identified the egg nucleus and polar nuclei in the central cell with the help of his teacher. Name the other nuclei present in the embryo sac.

In angiosperm pollen tube is a ferilizing agent. How does the pollen tube gain its entry into the embryo sac of the ovule?

Assertion: In the most common type of endosperm development, the PEN undergoes successive nuclear division to give rise to free nuclei. Reason: Embryo develops at the chalazal end of the embryo sac where zygote is situated.

Nucellar embryo is