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

C? Is that correct

If you are defining life as vs. non-life, yes.

Yes

Are you guys sure it is C because everything that we can see and not see is made up of atoms

No, C is not correct. The correct answer is "C. composed of atoms." Atoms are the building blocks of all matter, including living organisms. All living things are composed of cells (B) and carry out metabolism (D) to obtain energy and perform necessary life processes. Additionally, they maintain homeostasis (A) to regulate their internal environment and ensure conditions necessary for survival. To answer this question correctly, you need to recognize that all living things are made up of atoms and focus on the characteristics unique to living organisms.