Answer:
External respiration: CO2 diffuses into the blood
Explanation:
External respiration is also called the pulmonary gas exchange. It refers to the diffusion of O2 from the air in the alveoli of the lungs to blood in pulmonary capillaries and diffusion of CO2 in the opposite direction from the capillary blood into the alveolar air. External respiration in the lungs is responsible for oxygenation of deoxygenated blood coming from the right side of the heart. The oxygenated blood is then returned to the left side of the heart.
the term used to describe how well an organism functions in its environment is variation
<span>cm x (in/cm) = in
21 cm x (1 in / 2.54 cm) = 8.3677 in </span>
Answer:
this is something you have to do on your own it's a project 7 slides or more if you want about the topic of interest
