Question

Which of the following must unicellular organisms do to maintain homeostasis? A. Change food or sunlight into useful energy B. Use chemical signals to communicate between its cells C. Organize cells into tissues D. Specialize cells to perform specific functions

Answer 1

A. Change food or sunlight into useful energy

Each cell attains and processes to maintain homeostasis which is defined as the balance between the internal and external environment, adapting for instance for a cell to survive. That is why, the follow of water and other gradients is gradual and continuous.