Primary succession occurs in areas without life, while secondary succession occurs in places that were previously inhabitated.
Hope this helps!
:D®
<span>The theory of special creation proposed that species are independently created and immutable over time. Darwin observed that species are related and change over time.</span>
According to my knowledge there are many. Ribosomes, Centrioles, ER. <span>cellular structure is NOT surrounded by at least one membrane.</span>