A scientist is using robots to perform thousands of experiments on different chemical compounds to see how they affect cancer cells. What is this
process called?
A. An intravenous solution
B. Evaluating test results
C. Screening
D. Engineering process

Screening

Explanation: A P E X

the ozone layer acts as a filter for the shorter wavelength and highly hazardous ultraviolet radiation (uvr) from the sun, protecting life on earth from its potentially harmful effects. when the sky is clear, there is an inverse relationship between stratospheric ozone and solar uvr measured at the earth's surface.

under a microscope, cancer cells may look very different from normal cells. they often have different sizes and some may be larger than normal while others are smaller. cancer cells are often abnormally shaped and the control centre of the cell (the nucleus) may have an abnormal appearance.

i think? ?