Which of the following is true about studying cell theory? (Choose all that apply) A. Cell biology is a more specialized area of life science that studies only cells--their properties, their structure, how they function, and how they interact with their environments. B. Cell theory is widely accepted so its tenets no longer need to be tested. C. Cell theory is still being tested by new observations and advances in science. D. Microscopes have become more advanced and allow scientists to see the details of a cell. 20 PTS