Body Systems

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

Which system is responsible for breathing?

• cell nucleus

• excretory system

• nervous tissue

• respiratory system

What bone protects your brain?

• femur

• vertebrae

• skull

• clavicle

My heart is a(n)_________, that pumps blood through the body.

• Cell

• Tissue

• organ

• organ system

Which system is responsible for breathing?

• Digestive system
• Endocrine system
• Respiratory system
• Muscular system

What is the main function of the excretory system?

• to collect and remove wastes from the body
• to strengthen skeletal muscles
• to protect the nervous system
• to bring oxygen to body cells

Organ #1 is a part of what body system?

• excretory

• endocrine

• digestive

• muscular

What is the main function of the excretory system?

• to collect and eliminate waste products from the body

• to strengthen skeletal muscles

• to separate nutrients and waste from the food

• to bring oxygen to body cells and eliminate carbon dioxide

What are the three parts of the nervous system?

• brain, spinal cord, nerves

• brain, lungs, spinal cord

• heart, brain, nerves

• brain, nerves, neurons