Question
Which one of the following characteristics is common both in humans and adult frogs?
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Four chambered heart
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Internal fertilisation
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Nucleated RBCs
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Ureotelic mode of excretion
Solution
D.
Ureotelic mode of excretion
Most animals convert toxic ammonia into less toxic urea and excreted it, e.g., adult frog and man.
Four-chambered heart is present in human but two-chambered in frog.
Nucleated RBCs are found in frog but not in human.
Fertilization is internal in human but external in frog.
