In frogs:

1. The dentition is homodont and the upper jaw is toothless.

2. The dentition is heterodont and the upper jaw is toothless.

3. The dentition is homodont and the lower jaw is toothless.

4. The dentition is heterodont and the lower jaw is toothless.

Regarding frog:

I. They undergo aestivation and hibernation

II. They are carnivorous

III. They are poikilotherms

1. I, II, III are correct

2. I and II are correct

3. I and III are correct

4. II and III are correct

Regarding feeding habits:

1. Tadpole is herbivorous and frog is carnivorous

2. Tadpole is carnivorous and frog is herbivorous

3. Both tadpole and frog are carnivorous

4. Both tadpole and frog are herbivorous

Choose the correct statement for the digestive system of frog :

(1) Oesophagus is very long

(2) Food is captured by the bilobed tongue

(3) The intestine is divisible into two parts only i.e. duodenum and rectum

(4) Both (2) and (3)

Which of the following statement is incorrect with respect to Rana tigrina?
1. Muscular tongue is bilobed at tip and free from behind
2. Maxillary teeth are arranged along the margin of upper jaw and lower jaw is toothless
3. Tadpole larva of frog is with comparatively short alimentary canal than adult
4. Tail is present in the life cycle of frog