Question

Which one of the following is not a characteristic feature of frog?

• A. Skin, buccal cavity and lungs are respiratory organs
• B. Each of the forelimbs and hind limbs end in five digits
• C. Heart is three chambered
• D. Hepatic portal and renal portal are present
• E. The skin is moist and slimy

Answer 1

The correct option is B Each of the forelimbs and hind limbs end in five digits

Limbs in frog

There are two pairs of limbs i.e the forelimbs and hind-limbs.

They help the frog in burrowing, walking, leaping, etc.

The forelimbs have four digits and the hind limbs are pentadactyl.

Therefore the statement “Each of the forelimbs and hind limbs end in five digits” is not the characteristic feature of frogs.

Final answer
(2) Each of the forelimbs and hind limbs end in five digits