What is responsible for delivering oxygen and removing carbon dioxide from the body?

• cell nucleus
• excretory system
• nervous tissue
• respiratory system

The __________ system directs the body to inner and outer changes.

• digestive
• circulatory
• nervous
• skeletal

The __________ is the main organ of the nervous system.

• heart
• lungs
• brain
• skin

The circulatory system uses _________ to deliver oxygen to the rest of the body.

• blood cells

• lungs and nose

• Stomach

• brain and spinal cord

When tissues come together, they form ___________.

• cells
• atoms
• organs
• systems

Which of the following body systems work together for support, protection, and movement?

• respiratory and cardiovascular
• skeletal and muscular
• skeletal and integumentary
• digestive and respiratory

This system includes the spinal cord, brain and nerves

• Nervous System
• Digestive System
• Circulatory System

What body system removes the waste from your body? 

• Circulatory
• Excretory
• Digestive
• Respiratory

What body system is for support, protection, and creates new blood cells?

• skeletal system
• muscular system
• circulatory system
• integumentary system

The main function of the excretory system is....

• To filter waste from the blood stream and carry it outside of the body.
• To transport nutrients to the body.
• To break down nutrients for absorption.
• To provide structure and support for the body.