E.G Heart Chondrichthyes Two Chambered Auricle Ventricle Electric Organs

Text	Heart of chondrichthyes is two-chambered (one auricle and one ventricle). Some of them have electric organs (e.g., Torpedo) and some possess poison sting (e.g., Trygon). They are cold-blooded (poikilothermous) animals, i.e., they lack the capacity to regulate their body temperature

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