Question

13.
Compare the functioning of alveoli in the lungs and nephrons in the kidneys
with respect to their structure and functioning.​

Answer 1

Answer:

(i) Alveoli are tiny balloon-like structures present inside the lungs. (i) Nephrons are tubular structures present inside the kidneys. (ii) The walls of the alveoli are one cell thick and it contains an extensive network of blood capillaries.

Explanation:

Answer 2

Explanation:

Alveoli are tiny balloon-like structures present inside the lungs. (i) Nephrons are tubular structures present inside the kidneys.

(ii) The walls of the alveoli are one cell thick and it contains an extensive network of blood capillaries.

or

Alveoli and lungs act as the structural and functional units of lungs and kidneys respectively. Alveoli occur in the respiratory system while the nephrons occur in the excretory system. The cell wall of alveoli and nephrons is thick and surrounded by blood capillaries.

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