Q98 / 120 · NEET 2012 (Mains) · Zoology

Which one of the following characteristics is common both in humans and adult frogs?

  • A
    Four chambered heart
  • B
    Internal fertilization
  • C
    Nucleated RBCs
  • Correct answer
    D
    Ureotelic mode of excretion

Solution

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.

Hence, the correct answer is option: 'D'.

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