Question

lungs basic unit of seed is​

Answer 1

The alveoli are the functional units of the lungs and they form the site of gaseous exchange.

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Answer 2

The alveoli are the lungs' functional units and the location of gaseous exchange.

• The upper respiratory system, which includes the nose, nasal cavity, and throat, and the lower respiratory tract, which includes the larynx, trachea, bronchi, and lungs, are separated into two sections.
• The trachea originates at the laryngeal border, separates into two bronchi, and travels into the lungs. The trachea is a tube that connects the larynx to the bronchi and eventually the lungs.
• The bronchi are divided into smaller bronchioles, which branch out in the lungs to create air channels. The alveoli are the bronchi's end sections.