NCERT SOLUTIONS FOR CLASS 9TH BIOLOGY 1

NCERT SOLUTIONS FOR CLASS 9TH BIOLOGY

CELL – The fundamental unit of life “Cell is the structural and functional unit of life” Discovery of cell: – Robert Hooke (1665) is credited with the discovery of cell. He made microscope with visualizing power 100x. He observed very thin slice of cork under microscope and saw that the ork resembled the structure of …

NCERT SOLUTIONS FOR CLASS 9TH BIOLOGY Read More »