Question

what is the basic unit of structure and function of all living organisms?
mitochondrion
dna
nucleus
cell

Explanation:

In biology, the cell is considered the basic unit of structure and function for all living organisms. Mitochondrion is an organelle in the cell, DNA is the genetic material in the cell, and nucleus is an organelle containing DNA. The cell is the fundamental entity that can carry out life - processes.

Answer:

D. cell