3. the bright field microscopy image (left) shows an onion epidermal cell. its
measured length is 52,000 pm (52 mm). the image has been magnified
140 x. calculate the actual size of the cell:

371pm

Explanation:

To calculate the actual size of the cell, divide the image size by the magnification.

52,000pm ÷ 140X = 371.4285pm

≈ 371pm

Round based on the number of decimals in the question.

Round down because the first decimal place is less than 5. If the first decimal was 5 or more, round up (to 372).

scientists have discovered that hiv does not cause aids by the virus's direct effect on the host's immune cells, but rather through the cells' lethal influence on one another. researchers from the gladstone institutes have revealed that hiv does not cause aids by the virus's

chert is a sedimentary rock composed of microcrystalline or cryptocrystalline silica. with this little bit of information, you can come to the conclusion that your answer is c.  

explanation: