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 the lowest level of organization in biological organisms.