. Physical basis of life is

Best Answer

Explanation- 

• Protoplasm is the living material inside a cell.
• It is a collective name for cytoplasm and nucleus of the cell.
• Nucleus controls all the activities of the cell.
• Cytoplasm of the cell is area of all living reactions which keep a cell alive
• It is composed of  small molecules like water, ions, amino acids as well as macromolecules like nucleic acid, carbohydrates and proteins.

Final Answer-

Option B is the correct answer, protoplasm is the physical basis of life.