Systems in Human

 Which system is responsible for creating red blood cells?

• Skeletal
• Nervous
• muscular
• circulatory

Which are parts of the digestive system

• mouth and lungs
• mouth and teeth
• mouth and brain
• mouth and arm

Which system protects to the cardiovascular system?

• skeletal
• nervous
• digestive
• circulatory

Why is the digestive system so important for the human body?

• it circulates blood to all the systems
• it moves oxygen through the lungs and into the blood
• it carries away waste products
• it breaks food  into nutrients and moves them into the blood

What is the main function of the nervous system?

• clean waste from the cells
• absorb nutrients for energy
• deliver messages to the brain 

What is the purpose of the skeletal system?

• connects bone and muscles together
• connects organs of the body to the brain
• provides support and protects the organs 
• provides energy to the bones and muscles

Which body system carries signals to and from the brain?

• Respiratory
• circulatory
• nervous
• skeletal

Which is a major organ of the circulatory system?

• brain
• heart
• kidney
• stomach

Why is the respiratory system so important?

• it controls breathing and gas exchange in the body
• it controls digestion and absorption of nutrients
• it controls heartbeat and blood circulation
• it controls internal body temperature

Which system is responsible for providing oxygen to cells?

• skeletal
• digestive
• nervous
• circulatory