David observes human epithelial cells under a microscope. He uses the ×40 objective lens and measures the diameter of a cell at 8 O. U. Using the same calibration table
above, calculate the diameter measurement to um?

Asap many people try to eliminate fat from their diets which is one reason it is necessary for humans to eat fat a) fat is the only way to get energy b) every cell in the body must contain fat c)fat stores less energy than polysaccharides d) saturated fats make blood vessels healthier