ANATOMY

Detailed explanation-1: -The cell is the smallest structural and functional unit of living organisms, which can exist on its own. Therefore, it is sometimes called the building block of life. Some organisms, such as bacteria or yeast, are unicellular-consisting only of a single cell-while others, for instance, mammalians, are multicellular.

Detailed explanation-2: -All living things are made of cells (Figure 3.3. 1); the cell itself is the smallest fundamental unit of structure and function in living organisms.

Detailed explanation-3: -The cell is the smallest unit of life that can divide, multiply, grow and respond to stimuli from the environment. The cell structure is colloidal. The vital signs called life, manifest itself in this colloidal environment called protoplasm.

Detailed explanation-4: -They provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions. Cells also contain the body’s hereditary material and can make copies of themselves.

Detailed explanation-5: -Answer and Explanation: The cell is the smallest unit of life because it is the most fundamental building block of every living organism.