Class 10 Biology MCQs - Chapter 3

Gaseous Exchange Multiple Choice Questions PDF Download - 5

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The Multiple Choice Question (MCQ Quiz): In nostrils, the substance which moistens and keep the incoming air warm is classified as; "Gaseous Exchange" App Download (Free) with answers larynx, bronchi, mucous and glottis to study high school online courses. Solve gaseous exchange in humans quiz questions, download Google eBook (Free Sample) for free online courses.

Gaseous Exchange Questions & Answers PDF Download: MCQ Quiz 5

MCQ 21: In nostrils, the substance which moistens and keep the incoming air warm is classified as

A) bronchi

B) larynx

C) mucous

D) glottis

MCQ 22: During inspiration the diaphragm is

A) contracted

B) dome shaped

C) relaxed

D) raised

MCQ 23: The main cause of lung cancer is

A) pollutants

B) smoking

C) cough

D) fever

MCQ 24: The most common cause of cancer-related deaths is

A) kidney cancer

B) liver cancer

C) lung cancer

D) stomach cancer

MCQ 25: The cluster of pouches opened from alveolar ducts is called

A) pulmonary cells

B) alveoli

C) bronchus

D) epithelial cells

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