What type of microscope focuses beams of electrons on specimens?

The correct answer is the electron microscope.

The electron microscope is the microscope that uses an electron beam to illuminate the object of study. The electron microscope has a higher resolving power than light microscope because the wavelength of an electron is a lot shorter than that of visible light photons.

answer; the above statement is (true);

image result for how many calories of energy will 20 grams of carbohydrates provide in one gram provides 4 calories

consuming the right balance of protein, carbohydrates and fat can you maintain a healthy weight and optimize your energy levels. protein and carbohydrates both contain 4 calories per gram, while fat provides 9 calories per gram.