Meaning: A dark color or material obtained by heating organic matter or wood.
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 cellsarise from existing cells. Rudolf Virchow later made important contributions to this theory. ... Thecell is the fundamental unit of structure and function in living things.
1. <span>Soil Erosion Upstream
2. </span><span>Loss of habitat
Hope this helps!</span>
Pollution caused the environment to become more darkly colored, so moths were selected to be blacks and greys. Before pollution they were white and lighter colors. <span />
