Examlex
Which of the following statements is true?
Spiracles
Small openings found on the surface of some animals, such as insects and spiders, that lead to their respiratory systems.
Gills
The respiratory organs of aquatic animals that extract dissolved oxygen from water and release carbon dioxide.
Respiratory Gases
Gases involved in the process of respiration, primarily oxygen (O2) for inhalation and carbon dioxide (CO2) for exhalation.
Spiracles
Small openings on the surface of some animals, such as insects, that allow air to enter and exit the respiratory system.
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