Animal Respiratory System
Biology ⇒ Animal Biology
Animal Respiratory System starts at 9 and continues till grade 12.
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See sample questions for grade 9
Describe how the respiratory system of a frog changes as it develops from a tadpole to an adult.
Describe the main difference between external and internal respiration.
Describe the pathway of air from the nose to the alveoli in mammals.
Describe the role of cilia and mucus in the respiratory tract of mammals.
Explain how amphibians can breathe both in water and on land.
Explain how the structure of fish gills maximizes gas exchange.
Explain why aquatic animals like fish need a continuous flow of water over their gills.
Explain why efficient gas exchange is important for animal survival.
Explain why some aquatic animals, such as dolphins and whales, have lungs instead of gills.
Explain why the surface area of respiratory organs is important for gas exchange.
Name two animals that use their skin as a major respiratory organ.
What is the main difference between the respiratory systems of birds and mammals?
Which gas is taken in during respiration and used by cells for energy production?
A researcher observes that a certain aquatic animal has a respiratory system that allows water to flow in one direction over its respiratory surface, while blood flows in the opposite direction. What is the name of this mechanism, and why is it advantageous?
Compare and contrast the respiratory systems of insects and fish, focusing on how each system is adapted to its environment.
Describe how the structure of alveoli in mammalian lungs increases the efficiency of gas exchange.
Explain why birds are able to fly at high altitudes where oxygen levels are low, while most mammals cannot.
A student observes that a certain animal can survive for long periods without breathing, especially during hibernation. Explain the physiological adaptations in the respiratory system that might allow this animal to survive extended periods with low oxygen intake.
Describe how the partial pressure of oxygen changes as air moves from the atmosphere into the alveoli of the lungs, and explain the significance of this change for gas exchange.
Describe the role of surfactant in the mammalian respiratory system and explain what might happen if it is absent.
