Answer:
The unified cell theory states that: all living things are composed of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells. Rudolf Virchow later made important contributions to this theory.
Explanation:
The answer is males<span> have both an X and a Y </span>chromosome<span>denoted 46,XY.</span>
It's the built up pressure and heat inside the mantle of the earth
Sound waves make u heat it and ur brain interprets it