Question

what is the basic unit of structure and function of living things?
a atom
b molecule
c cell
d organ system

Explanation:

To determine the basic unit of structure and function of living things, we analyze each option:

• Option a: An atom is the basic unit of matter, not specifically of living things' structure and function.
• Option b: A molecule is a group of atoms bonded together, and while important in living systems, it's not the basic unit of structure and function of living organisms.
• Option c: The cell theory states that the cell is the basic unit of structure and function in all living organisms. All living things are composed of cells, and cells perform the essential functions for life.
• Option d: An organ system is a group of organs that work together to perform a specific function, which is a higher level of organization than the basic unit.

Answer:

c. cell