An electron microscope would be used if a sample needed to appear lighter a sample was too small to be seen with an optical microscope details of cell structures needed to be distinguished

The image shows ekgs of a person with normal heart waves and of a person having tachycardia. based on this image, what kind of condition is tachycardia? a. the heart beats abnormally fast. b. the heart beats abnormally slow. c. the right atrium of the heart stops working. d. the left ventricle pumps less blood to the aorta.

Pl which diagram illustrates prophase?

Match each term to its best definition? sedimentary depositional enviornment