MCQ
Closed circulatory system is present in
- ✓Annelids and chordates
- BArthropods and annelids
- CArthropods and chordates
- DMolluscs and annelids
✓
Answer
Correct option: A.
Annelids and chordates
a
Circulatory patterns are two types
Open Circulatory Pathways
Present in arthropods and molluscs in which the blood pumped by the heart passes through the large vessels into the open spaces of body cavity called sinuses
Closed Circulatory Pathways
Annelids and chordates have closed circulatory system in which the blood pumped by the heart is always circulated through a closed network of blood vessels. This pattern is considered to be more advantageous as the flow of fluid can be more precisely regulated
Circulatory patterns are two types
Open Circulatory Pathways
Present in arthropods and molluscs in which the blood pumped by the heart passes through the large vessels into the open spaces of body cavity called sinuses
Closed Circulatory Pathways
Annelids and chordates have closed circulatory system in which the blood pumped by the heart is always circulated through a closed network of blood vessels. This pattern is considered to be more advantageous as the flow of fluid can be more precisely regulated
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