Where does aerobic respiration happen?
What is released during respiration?
What is energy needed for?
Which part of the body takes air from the trachea into each lung?
Why do we have two bronchi?
Where does gas exchange take place?
What happens at the alveoli during gas exchange?
Diffusion needs to be as efficient as possible, which of the following is one of the main adaptations of the alveoli for this?
The system for pumping blood within the body is called the…
Why are there two phases to blood being pumped around the body?
The blood that is pumped from the heart to the lungs is…
The blood that is pumped from the lungs to the heart is…
The blood that is pumped from the heart to the body is…