Respiration is the process of gas exchange (oxygen intake and carbon dioxide release). Different animals have evolved various respiratory organs depending on their environment. Gills are specialized structures for extracting oxygen from water, while lungs are adapted for gas exchange in air. Amphibians exhibit a dual mode of respiration, reflecting their transition from aquatic to terrestrial life.
Which one among the following animals can perform respiration either through gills or through lungs ?
Asked in UPSC CISF AC EXE 2021 · Topic: Respiratory System (Comparative Anatomy of Respiratory Organs (e.g., gills, tracheae, lungs))
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