A. Pass mucous out B. Pass mucous in C. Pass air out D. Pass air in
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A. Our lungs do not get enough supply of blood B. Swallowing and breathing cannot go together at the same time C. Lungs are compressed as stomach anlarges D. More energy is required during eating
A. Tracheoles B. Alveolar sacs C. Bronchioles D. Alveoli
A. Absorption of U.V rays to produce vitamin D B. Diffusion of respiratory gases C. Storage of excess food as subcutaneous fat D. Excretion of nitrogenous waste as uric acid
A. active transport B. passive transport C. simple diffusion D. None
A. cerebellum B. medulla oblongata C. cerebrum D. diencephalon
A. Contracts B. Expands C. Remains unchanged D. None of them
A. Vital capacity B. Total lung capacity C. Inspiratory capacity D. Functional residual capacity