I'm pretty sure it was yellow fever.
Because Precambrian rocks are in short supply, hence fossil evidence is harder to find.they only discovers sections of some Precambrian rocks there were no bones or shells to be permineralized.
That's true because the basic functions of a multi-cellular plant occur in the cell and like any other cell, unicellular alga are also cells thus basic functions such as respiration, excretion, growth occur in both multicellular organisms as well as unicellular organisms
<span> protozoa, algae and fungus-like </span><span>protists
I hope this helps!</span>
A concentration gradient must exist. hope this helps
