Depends on the magnification you are looking for... usually, a light microscope is enough (1000x max magnification)...
An electron microscope is powered by high energy beams and can magnify many times higher than the light microscope (where magnification is limited by the wavelength of light). The magnification of an EM is on the nano scale.
(P.S.: as a chemist, I'd always choose an EM over an optical microscope as I can always zoom in or out depending on my needs) ;)
The answer is:
1. It allows for a faster growth rate.
2. It can create an extended life.
I hope that helped :)
If it is hot water than than it will expand an if it is cold water than it will shrink
Speciation is the formation of new and distinct species in the course of Evolution. Hope this helps!