The lowest level of organization in an organ system is the group of

A.
organelles that compose cells.

B.
organs that compose organ systems.

C.
tissues that compose organelles.

D.
cells that compose organelles.

1 answer

The correct answer is:

B. organs that compose organ systems.

In the context of biological organization, the lowest level of organization in an organ system is the group of organs that work together to perform specific functions.