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.

What practical or industrial application is directly enabled by scientific knowledge of Human Circulatory System (Blood, Vessels, Heart)?


(A)
Discarding technological innovations
(B)
Halting laboratory research
(C)
Reverting to medieval tools
(D)
Innovations in healthcare, engineering, agriculture, and energy conservation derived from Human Circulatory System (Blood, Vessels, Heart)
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