Final answer:
Homeostasis, reproduction, and metabolism are cellular functions vital for life, involving the regulation of an organism's internal environment despite external changes. The correct option is option c.
Step-by-step explanation:
Homeostasis: It refers to the ability of cells or organisms to maintain internal stability and equilibrium despite changes in the external environment. Cells regulate various physiological parameters such as temperature, pH, and nutrient levels to sustain optimal conditions for proper functioning.
Reproduction: It involves the process of generating new cells or organisms, allowing the transmission of genetic material to offspring. At the cellular level, reproduction includes cellular division mechanisms like mitosis or meiosis, ensuring the continuity of life.
Metabolism: It comprises all the chemical processes occurring within cells that involve the conversion of nutrients into energy (catabolism) and the utilization of this energy for essential cellular functions (anabolism). Metabolism includes various biochemical reactions such as digestion, respiration, and synthesis of biomolecules necessary for cell survival and growth.
These functions are vital for the survival, growth, and proper functioning of cells and organisms. They enable cells to adapt to changing environmental conditions, propagate genetic material, and utilize energy for essential processes, collectively ensuring the maintenance and perpetuation of life.