HORTICULTURE

Detailed explanation-1: -Cells are called building blocks of life because they are basic structural and functional units of our life. In the different levels of organization in an organism, the cell acts as the basic unit. This means cells form the tissues, organs and organ systems in the different organisms.

Detailed explanation-2: -Answer: Cells are called the building blocks of life because they are the basic unit for all living organisms, and must be present for life to exist. Plants and animals have trillions of cells, while protists have only one cell, yet protists are still considered to be living organisms.

Detailed explanation-3: -Cell theory states that the cell is the basic building block of all life forms and that all living things, whether plants or animals, consist of one or more cells. It further states that new cells can only be made from existing ones, and that organisms can grow and reproduce because their cells are able to divide.

Detailed explanation-4: -The unified cell theory states that: all living things are composed of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells. Rudolf Virchow later made important contributions to this theory.