A femur is a leg bone found in a human skeleton. In terms of the human body's levels of organization, which of the following best classifies a femur?

Question

A.
an organism, because it is part of the skeletal system

B.
an organelle, because it is composed of many tissues

C.
an organ system, because it is composed of many cells

D.
an organ, because it is part of the skeletal system

Answer 1

The best classification for a femur in terms of the human body's levels of organization is:

D. an organ, because it is part of the skeletal system.

The femur is a specific structure that is made up of various types of tissues (such as bone tissue, cartilage, and connective tissues) and plays a critical role in the skeletal system.