Biology Life Processes CBSE Board 2026 Medium
(a) Draw a neat diagram of the human respiratory system and label its lungs, trachea, bronchi and alveoli. (b…
- (a)Draw a neat diagram of the human respiratory system and label its lungs, trachea, bronchi and alveoli.
- (b)State the roles of the following in the process of respiration : (i) Alveoli (ii) Respiratory pigments
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