this presentation providing about the cell .Cell is the basic living, structural, and functional unit of the body. Cells are grouped together to form tissues, each of which has a specialized function, e.g.- Bone and blood tissue. Different tissues are grouped together to form a organs, e.g. liver, stomach, and kidney etc. Organs are grouped together to form a system, each of which performs a particular function responsible for maintaining homeostasis . e.g. Urinary system, Respiratory system etc.