Examlex
Which statement best describes speciation?
Primary Bronchi
The two main branches of the trachea that lead into the lungs, providing a pathway for air to enter and exit the lungs.
Gas Exchange
The biological process through which different gases are transferred in opposite directions across a specialized surface, such as in the lungs or leaves of plants.
Alveoli
Tiny air sacs in the lungs where the exchange of oxygen and carbon dioxide takes place during breathing.
Secondary Bronchi
The branches of the main bronchus that lead into each lung, further subdividing into tertiary bronchi.
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