Can someone check my answers please?

1. Which of the following is not a characteristic of life?
A. Maintains homeostasis
B. Composed of cells
C. Composed of atoms***
D. Carries out metabolism

2. Which of the following represents a correct sequence of levels within the hierarchy of life?
A. Community, population, biosphere
B. Cell, population, organism
C. Cell, organism, tissue
D. Organ, organ system, organism***

3. Which of the following characteristics of living things could be applied to an automatic door at a supermarket?
A. Living things grow everyday
B. Living things evolve over generations
C. Living things respond to stimuli in the environment***
D. Living things maintain a stable internal environment

4. In the hierarchy of life, which level is below the community level but above the organ level?
A. Cell
B. Population***
C. Molecule
D. Tissue

5. Justify why it is important to scientists to have a universal system of measurements. It is important scientists have a universal system of measurements so different scientists around the world can research, understand, and dig deeper into things scientists in other areas of the world discovered.