Which of the following groups of animals can most efficiently extract oxygen from the atmosphere?

Question

Quizplus · Accepted Answer

Birds have a highly efficient respiratory system that allows them to extract oxygen from the atmosphere more efficiently than other animals. Their lungs are supported by air sacs that help to circulate air through their respiratory system, allowing for a more constant flow of oxygenated air. Additionally, their small size and unique airway structure allows for increased oxygen diffusion across their respiratory membranes.

Which of the Following Groups of Animals Can Most Efficiently