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प्रश्न
Separation of right side and left side of the heart is useful to keep oxygenated have different and deoxygenated blood from mixing. Various organisms types of heart.
(I) Fill in the blanks (i) to (iii) correctly according to the type of organisms and their evolution in terms of blood circulation:
| Organisms | Number of chambers in heart | Type of blood being circulated | Type of circulation |
| Fish | (i) ______ | Mixed | Single |
| (ii) ______ | 3-chambered | Mixed | Incomplete double circulation |
| Birds and Mammals | 4-chambered | Separated circulation path of oxygenated and deoxygenated blood | (iii) ______ |
(II) Which type of circulation is most efficient?
रिक्त स्थान भरें
लघु उत्तरीय
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उत्तर
(I)
| Organisms | Number of chambers in heart | Type of blood being circulated | Type of circulation |
| Fish | (i) Two-chambered | Mixed | Single |
| (ii) Amphibians/Reptiles | 3-chambered | Mixed | Incomplete double circulation |
| Birds and Mammals | 4-chambered | Separated circulation path of oxygenated and deoxygenated blood | (iii) Complete double circulation |
(II) Complete double circulation is the most efficient type of circulation because it completely separates oxygenated and deoxygenated blood.
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