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 act(s) as a respiratory organ in a frog on land?

1. Skin 

2. Buccal cavity

3. Lungs

4. All of the above

Forelimbs of frog have:

1. Five digits

2. Four digits

3. Three fingers

4. One finger

Bull frog of India is

(1) Rana tigerina

(2) Rana sylvatica

(3) Rana ecutedbeiana

(4) Rana esculenta

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.

The skull of frog is:

1. Acondylic

2. Monocondylic

3. Dicondylic

4. Polycondylic

Which of the following is not seen in the brain of the frog?

(1) Olfactory lobes

(2) Corpus callosum

(3) Corpora striata

(4) Anterior choroid plexus

Tadpoles will undergo metamorphosis if they are:

(1) fed on frog eggs

(2) provided with high temperature

(3) injected thyroxine

(4) injected gonadotropic hormones

The pituitary gland is crushed and injected in a frog. The frog will:

(1) start laying eggs almost immediately

(2) change color

(3) undergo metamorphosis

(4) die

Cuboidal epithelium with brush border of microvilli is found in :

1. Ducts of salivary glands

2. Proximal convoluted tubule of nephron 

3. Eustachian tube

4. Lining of intestine