Which letter best represents how scietist use these words and why​

Loss of protected health information collected for research should be directly reported to:

Nephrons, the functional unit of kidneys, are responsible for formation of urine. the sentences describe situations that are the result of problems in the urine formation process. for the nephron shown below, match each situation to the step in the urine formation process where the problem lies.

Approximately what wavelength of light is best absorbed by chlorophyll a