3 Questions
What advantage over an aquatic organism does a terrestrial organism have with regard to obtaining oxygen for respiration?
Terrestrial organisms have access to a larger concentration of oxygen in the air compared to aquatic organisms which rely on oxygen dissolved in water.
How is oxygen and carbon dioxide transported in human beings?
Oxygen is mainly transported by hemoglobin in red blood cells, while carbon dioxide is mostly transported in the dissolved form in blood.
How are the lungs designed in human beings to maximize the area for exchange of gases?
The lungs have a complex structure with millions of tiny air sacs called alveoli that provide a large surface area for efficient gas exchange.
Learn about how smoking impacts the respiratory system, leading to lung infections, cough, and lung cancer. Explore the structure of the lungs and alveoli where gas exchange occurs.
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