The statement above is FALSE. In the scenario given above the doctor is working at the organ level. This is because, he is working with lung which is an organ that participates in breathing. The lung is an organ because it is made up of different tissues which are in turn made up of different cells.
Working at the cellular level involve working with cells. For instance, when a microbiologist is growing a cell in a culture, he is working at a cellular level.
I think is correct answer is B. Weathering.
Because the weathering is surface processes that work to break down to the rock.
Hope it helped
This is the life span that a cell has
