Class 9 Biology MCQs - Chapter 9

Transport Multiple Choice Questions (MCQs) PDF Download - 29

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The Multiple Choice Question (MCQ Quiz): Period in the cardiac cycle during which blood is filled into atria and ventricles and atria relaxes is called; "Transport" App Download (Free) with answers cardiac systole, atrial diastole, atrial systole and cardiac diastole to study high school online courses. Solve pulmonary and systemic circulation quiz questions, download Google eBook (Free Sample) for free online classes.

Transport Questions & Answers PDF Download: MCQ Quiz 29

MCQ 141: The period in the cardiac cycle during which blood is filled into atria and ventricles and atria relaxes is called

atrial diastole
cardiac systole
atrial systole
cardiac diastole

MCQ 142: The small openings present in stems of plants are classified as

plasmodesmata
lenticels
guard cells
stomatas

MCQ 143: The capillaries are considered as the smallest blood vessels present in

pulmonary vessels
tissues
pulmonary arteries
pulmonary valves

MCQ 144: Considering all the veins of the human body, the veins that carry deoxygenated blood are

pulmonary veins
connective veins
endothelial veins
exothelial veins

MCQ 145: The diffusion of water vapors is reduced as the

air becomes humid
temperature goes below 0
temperature goes above 55
stomatas blocked

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