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Question
Cold-blooded (poikilothermous) animals present in
Cold-blooded (poikilothermous) animals present in
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Solution
The correct option is C Chondrichthyes
Chondrichthyes heart 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. Sexes
are separate. In males pelvic fins bear claspers. They have internal
fertilisation and many of them are viviparous. Examples: Scoliodon (Dog
fish), Pristis (Saw fish), Carcharodon (Great white shark), Trygon (Sting ray).
Chondrichthyes heart 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. Sexes are separate. In males pelvic fins bear claspers. They have internal fertilisation and many of them are viviparous. Examples: Scoliodon (Dog fish), Pristis (Saw fish), Carcharodon (Great white shark), Trygon (Sting ray).
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