Here's a breakdown:

* Seed coat: The outer protective layer of a seed. It's tough and waterproof to protect the embryo inside from damage and drying out.

* Embryo: The tiny, undeveloped plant inside the seed. It contains the roots, stem, and leaves that will eventually grow into a full plant.

* Endosperm: A food source for the developing embryo. It contains nutrients like starch, protein, and oil.

So, the seed coat isn't actually growing around the seed, it's a protective covering that's part of the seed itself.