Estrogen Molecules. The three major naturally occurring estrogens in women are estrone (E1), estradiol (E2), and estriol (E3). Estradiol is the predominant estrogen during reproductive years both in terms of absolute serum levels as well as in terms of estrogenic activity.
The geocentric model could not fully explain the changes in the appearance of the inferior planets. hope this helps again lol :)
Answer:
metal
Explanation:
Metals have unique characteristics that differ from other substances: they are solid, do not let light (they are opaque) and conduct electricity and heat well, having a special shine called metallic. When heated they are malleable and can be molded into various shapes, from wires to plates and bars. For these reasons, we can say that a malleable and ductile material - or capable of being hammered into different shapes without breaking and being pulled by a wire - is probably a metal.
