To find out how they form
Hair shaft is the one that you will see on the body surface.
A mature seed consists of two essential parts – the seed coat and the embryo. Seed coat: The outer covering of the seed is known as seed coat. The seed coat develops from the integument of the ovules. The seed coat is made of two layers – the outer layer is called the testa and the inner layer is called tegmen.
It allows us to determine not only how and why organisms have become the way they are, but also what processes are currently acting to modify or change them !
