Understanding Animal Heart Chambers
Different animal groups have distinct heart structures reflecting their evolutionary development and physiological needs. The number of chambers in a heart determines the efficiency of blood circulation.
- Fish, such as the Sting Ray and Rohu, typically have a two-chambered heart (one atrium and one ventricle).
- Amphibians, like the Salamander, generally possess a three-chambered heart (two atria and one ventricle). This allows for some mixing of oxygenated and deoxygenated blood.
- Birds, such as the Sparrow, and mammals have a highly efficient four-chambered heart (two atria and two ventricles), which completely separates oxygenated and deoxygenated blood.
Identifying the Animal with a Three-Chambered Heart
Based on the classification of heart structures:
- Sting Ray (Fish): Two-chambered heart.
- Salamander (Amphibian): Three-chambered heart.
- Rohu (Fish): Two-chambered heart.
- Sparrow (Bird): Four-chambered heart.
Therefore, the Salamander is the correct answer.
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