HUMAN PHYSIOLOGY
BODY FLUIDS AND CIRCULATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Arthopod and chordates
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Molluscs and chordates
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Amphibians and molluscs
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Annelids and chordates
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Detailed explanation-1: -In a closed circulatory system, the blood pumped by the heart is always circulated through a closed network of blood vessels. As fluid is regulated in better ways, it is more advantageous. The closed circulatory system is present in Annelids and Chordates.
Detailed explanation-2: -Chordates also have a closed circulatory system, and most, but not all, chordates have a heart. The blood of most chordates contains the oxygen-carrying molecule hemoglobin. The muscles of the body are segmented into blocks called myotomes.
Detailed explanation-3: -Annelids have a closed circulatory system in which blood is pumped along by muscles in blood vessels (Fig. 3.48). Blood flows through the microscopic capillaries, picking up food molecules from the digestive tract and oxygen from the skin and transporting them to the cells of the body.
Detailed explanation-4: -Chordates have a closed circulatory system with a network of blood vessels throughout the body.
Detailed explanation-5: -(I) Arthropods. (II) Annelids. (III) Chordates.