Q- Which of the following is Close loop system -
a-)respiratory System b-)traffic light system c-)washing
machine d-)Room heater
my option is A, what is our take on option B & C
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Answer Posted / uday
A) respiratory System is a close loop system.
Vertebrates have closed circulatory systems. Their blood flows through blood vessels (arteries, veins and capillaries) and they have a heart to push the blood around their body. The human circulatory system is a closed system.
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