AP BIOLOGY

Detailed explanation-1: -Cells-the smallest unit that can perform all of life processes.

Detailed explanation-2: -The smallest structural and functional unit of an organism is a cell.

Detailed explanation-3: -Cell is the smallest structural and functional unit of an organism. Each cell of an organism performs functions such as nutrition, transport, excretion and reproduction.

Detailed explanation-4: -A cell is the smallest and most basic form of life. Robert Hooke, one of the first scientists to use a light microscope, discovered the cell in 1665. In all life forms, including bacteria, plants, animals, and humans, the cell was defined as the most basic structural and functional unit.

Detailed explanation-5: -Cells are the smallest common denominator of life. Some cells are organisms unto themselves; others are part of multicellular organisms.