The ___________ are the main organs of the respiratory system.
veins
lungs
arteries
kidneys
4. Multiple Choice
30 seconds
1 pt
The ____________________ is the body system that transports oxygen, nutrients, and waste through the body.
respiratory system
digestive system
circulatory system
immune system
5. Multiple Choice
30 seconds
1 pt
The ____________ is a muscular organ that pumps blood to the body through blood vessels.
vein
artery
heart
kidney
6. Multiple Choice
30 seconds
1 pt
The ______________________ is the body system that breaks food down so that it can be used by the body.
circulatory system
digestive system
respiratory system
skeletal system
7. Multiple Choice
30 seconds
1 pt
What is your body's process of maintaining balanced conditions?
photosyntheis
homeostasis
circulation
regulation
8. Multiple Choice
30 seconds
1 pt
What is the main function of the respiratory system?
regulate the body's functions by secreting hormones
protect the inner organs of the body from harm
coordinate the actions of the body
exchange carbon dioxide & oxygen with the environment
9. Multiple Choice
30 seconds
1 pt
The following is an example of which two systems working together: "The small intestine absorbs nutrients from our food and they are carried through the blood to the cells."
Digestive and Circulatory
Digestive and Respiratory
Digestive and Skeletal
Digestive and Nervous
10. Multiple Choice
1 minute
1 pt
Which system works with the Skeletal system to give nutrients to the bones?
Nervous System
Digestive System
Muscular System
None of the above
11. Multiple Choice
1 minute
1 pt
Fill in the blanks: "The ________ system allows us to move around, but the _________ system controls our movement."
Skeletal, Nervous
Nervous, Skeletal
Muscular, Skeletal
Nervous, Muscular
12. Multiple Choice
1 minute
1 pt
Alveoli are microscopic air sacs in the lungs of mammals. Which statement best describes how the structure of the alveoli allows the lungs to function properly?
they increase the amount of energy transferred from the lungs to the blood.
they incrase the flexibility of the lungs as they expand during inhalation
they increase the volume of the lungs, allowing more oxygen to be inhaled
they incrase the surface area of the lungs, allowing efficient gas exchange