15. The study of structures of organisms, their cells and their organelles at molecular level is known as A.Molecular biology B.Environmental biology C.Microbiology D.Cell biology
Answer: Option D Solution: Study of cell structure and function is called cell biology. Cell biology is a branch of biology that studies cells, their physiological properties, their structure, the organelles they contain, interactions with their environment, their life cycle, division, death and cell function.
