Where is the seed coat in a sunflower seed?

The seed coat in a sunflower seed is the outermost layer of the seed. It's the hard, black shell you see and remove before eating the seed.

Here's a breakdown:

* Seed coat: The protective outer layer that surrounds the seed.

* Kernel: The edible part of the seed, which contains the embryo and endosperm.

* Hull: The seed coat plus the pericarp (the fruit wall), which is often referred to as the "shell" of the seed.

So, the seed coat is essentially the black shell of the sunflower seed.