Question

Choose a pair of statements true of Gymnophiona.
I. Skin contains minute dermal scales.
II. Teeth are absent on both jaws.
III. Vertebrate are numerous and amphicoelous.
IV. Fertilization is external.

• A. II and III
• B. II and IV
• C. I and II
• D. I and III

Answer 1

The correct option is D I and III

I. Apoda ( also called Gymnophiona or caecilia) - Body is long, slender wormlike without limbs and tail and with minute dermal scales.

II. Teeth are in both jaws.

III. vertebrate are numerous and amphicoelous.

IV. Fertilization is internal.

So, the correct answer is 'I and III'.