SCIENCE
CIRCULATORY SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What structure doesn’t belong in the circulatory system?
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Blood
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Blood vessels
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Heart
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Voluntary muscle
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Explanation:
Detailed explanation-1: -Cardiac muscle differs from skeletal muscle in that it exhibits rhythmic contractions and is not under voluntary control.
Detailed explanation-2: -Detailed Solution. The correct answer is Villi.
Detailed explanation-3: -The veins outer walls have the same three layers as the arteries, differing only because there is a lack of smooth muscle in the inner layer and less connective tissue on the outer layer.
Detailed explanation-4: -Hydra and sponges do not possess any circulatory system as they have cellular level of organisation.
Detailed explanation-5: -Blood. Blood Vessels. Heart.
There is 1 question to complete.