The muscular system is responsible for the movement of the human body. Attached to the bones of the skeletal system are about 700 named muscles that make up roughly half of a person's body weight. Each of these muscles is a discrete organ constructed of skeletal muscle tissue, blood vessels, tendons, and nerves.
I'll say C, Science cannot answer difficult question...let me know.
Answer:
In order, from least complex to most complex:
cells.
tissues.
organs.
organ systems.
organism.
Explanation:
Answer:
C. Axis
Explanation:
The label "N" refers to the northern hemisphere, and the red line is the axis on which the Earth rotates.
