(b) The actual diameter of the animal cell is 45 µm. The observed diameter of the animal cell in the electron micrograph is 1.8 cm. Calculate the magnification used to view the image. Show your working.

According to theories of how life began, how did early organic molecules begin to separate from the outside world? a: specialized enzymes were required b: chains of amino acids created a barrier c: formation of microspheres or vesicles d: rna catalyzed the formation of membranes