Question

An electron microscope is usually used for microorganisms that are _____.

Answer 1

Hi!
______
An electron microscope is usually used for microorganisms that are _____. too small to be seen with an optical microscope.

Hope this helps:)
Good luck!

Answer 2

The answer is too small to be observed even with an optical microscope. .

Step-by-step explanation:

Electron microscopes allow greater amplification than optical microscopes, because the wavelength of electrons is less than that of visible photons. The electron microscope is used to observe in more detail and clarity microorganisms that are too small to be observed even with an optical microscope.