Class 7

Transportation in Animals and Plants question bank (Science)

Practice 71 free Class 7 Science - Transportation in Animals and Plants questions with answers and step-by-step solutions.

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Q1.

Which blood vessels carry oxygen-rich blood from the lungs back to the left atrium of the heart?


(A)
Pulmonary artery
(B)
Systemic aorta
(C)
Vena cava
(D)
Pulmonary veins
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Q2.

In the chapter 'Transportation in Animals and Plants', which scientific principle governs 'Human Circulatory System (Blood, Vessels, Heart)'?


(A)
Superstition and myth
(B)
Empirical evidence, conservation laws, and repeatable experimental observations in Human Circulatory System (Blood, Vessels, Heart)
(C)
Aristotelian unverified claims
(D)
Random molecular movement without thermodynamics
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