A key difference between active transport and diffusion is that active transport __________.
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Answer:
<h3>In mammals, <u>air is warmed and humidified in the nasal cavity.</u> Air then travels down the pharynx, through the trachea, and into the lungs. In the lungs, air passes through the branching bronchi, reaching the respiratory bronchioles, which house the first site of gas exchange.</h3><h3>Hope it helps you</h3><h3>Mark as Brainliest Answer</h3>