Respuesta :
The following statement belongs to the concept of cell theory.
What is a cell?
A cell is the basic unit of life which carries all the biological molecules inside the membrane to keep an organism alive.
It is the structural and functional unit of life of which all living organisms are made of.
Living organisms can be single-celled or multi-celled as cells can attach, and interact with each other forming complex tissues and dividing the responsibility to different tissues which further form the organ and organ system of an organism like the digestive system. So, cells form the basic unit of biology.
Thus, the answer is cell theory.
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