y7 Body Systems

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

___________ are the building blocks of life.

• cells
• legos
• blocks
• blood

In multicellular organisms, tissues are comprised of _______.

• organs
• systems
• cells
• blood

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

Which of the following shows the levels of organization of an organism from LEAST to MOST complex.

• cells-tissues-systems-organs
• organs-cells-systems-tissues
• systems-organs-tissues-cells
• cells-tissues-organs-systems

What body system makes your body move? 

• Circulatory
• Respiratory
• Skeletal
• Muscular

What body system removes the waste from your body? 

• Circulatory
• Excretory
• Digestive
• Respiratory

Which system in the human body functions primarily to supply the blood with oxygen and remove carbon dioxide?

• excretory

• immune

• respiratory

• cardiovascular