객관식
Which of the following best describes the respiratory cycle?
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22. The Respiratory System
Introduction to Lung Physiology
객관식
How do amphibians primarily breathe?
A
Through lungs and skin
B
Through gills only
C
Through spiracles
D
Through tracheal tubes
검증된 단계별 안내1
Understand the respiratory systems of amphibians: Amphibians have a unique respiratory system that allows them to breathe through multiple methods depending on their life stage and environment.
Identify the primary breathing methods: Amphibians primarily breathe through their lungs and skin. This dual method allows them to exchange gases both in water and on land.
Consider the life stages: During the larval stage, many amphibians, like tadpoles, use gills to breathe underwater. As they mature, they develop lungs for breathing air.
Recognize the role of skin: Amphibians have moist skin that facilitates cutaneous respiration, allowing them to absorb oxygen directly from their environment.
Exclude other options: Spiracles and tracheal tubes are not used by amphibians for respiration. Spiracles are openings used by insects, and tracheal tubes are part of the insect respiratory system.
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