The lowest level of organization in an organism is

Question

A.
an organ because organs work together in organ systems.

B.
a tissue because tissues compose larger units such as organs.

C.
an organ system because organ systems engage in critical functions.

D.
a cell because cells are the independent units that make up the whole.

Answer 1

The correct answer is:

D. a cell because cells are the independent units that make up the whole.

Cells are the fundamental units of life, and they form the basis of all biological organization in living organisms.