Because it is heavier air :)
<span>A dichotomous key is very easy to use because it provides only two choices. </span>
<span>Preservation of advantageous genetic mutations, I think.</span>
Answer:
Multicellular organisms are made of more than one cell and are complex organisms.
They are visible to the naked eye.
They possess distinct organs and organ systems.
They are eukaryotes, i.e., they contain membrane-bound structures.
Their cells exhibit division of labor.
Their size increases with the number of cells in an organism
Explanation:
