Unit 3 Study Guide

Organization Of Life. Least to Most Complex.

• Cell, Tissue, Organ, Organ system, Organism

• Tissue, Organ, Organ System, Cell, Organism

• Organism, Cell, Organ System, Organ, Tissue

• Organism, Organ System, Organ, Tissue, Cell

The _ system has lots of mitochondria in its cells that produce energy through Cellular Respiration to allow the muscles to contract and release.

• skeletal system
• muscular system

The _ system allows the body to move, maintains body temperature, and helps us maintain posture.

• skeletal
• muscular

The Skeletal System includes, Ligaments, joints and

The two types of movements caused by the muscular system are muscles and

The _ system is also known as the cardiovascular system and pumps blood throughout the body and removes waste products like carbon dioxide from the blood.

• Respiratory
• Circulatory

The _ system receives information about the world around you and elicits a response. It includes the brain, spinal cord, and nerves.

The nervous system helps us maintain _, or a constant internal environment.

• homeostasis
• imbalance
• chaos
• disorder

The _ system delivers oxygen to the body and removes toxic carbon dioxide.

• respiratory system
• circulatory system

In the respiratory system, oxygen enters through the _ and ends up in the _