Given below is the diagram of female reproductive system of a frog marked with A, B, C, D, E and F. 

                  

Ovary is represented by:

1. A

2. B

3. C

4. D

Mucus helps a frog in forming

1. Thick skin

2. Dry skin

3. Smooth skin

4. Moist skin

Haemoglobin is dissolved in blood plasma of

1. Frog

2. Rabbit

3. Cockroach

4. Earthworm

The biological adaptation that allows frogs to obtain water for their survival during conditions of water scarcity is the

1. presence of a modified tongue that acts like a sponge to suck water from damp soils.

2. presence of water channels in the skin by which they absorb water from their surroundings.

3. presence of ciliated esophagus that helps in separating water from ingested particulate matter.

4. selective feeding on plants with a large amount of water that would fulfill the water requirement.

The following diagram shows the male reproductive system of a frog. A, B, C, D and E are respectively:

1. Fat body, Testes, Kidney, Cloaca, Urinary bladder

2. Fat body, Testes, Kidney, Urinary bladder, Cloaca

3. Fat body, Testes, Adrenal, Cloaca, Urinary bladder

4. Fat body, Testes, Adrenal, Urinary bladder, Cloaca

Identify the incorrect statement amongst the following:

1. There is no functional connection of ovaries with kidneys in female frog.

2. In male frog, the ureter arises as urogenital duct and opens into the cloaca.

3. The fertilization in frog is external.

4. Development in frogs is direct.

Regarding reproductive system of a male frog:

I. Testes are adhered to the upper part of the kidneys by a double fold of peritoneum called mesorchium.

II. Vasa efferentia are 50 to 60 in number and enter kidneys on their side

III. Vasa efferentia open into the bidder's canal which finally communicates with urogenital duct.

1. I, II, III are correct

2. I and II are correct

3. I and lll are correct

4. II and III are correct

In frog, a thin walled urinary bladder is present __________ to the rectum and opens in the __________

1. Ventral, cloaca

2. Dorsal, cloaca

3. Ventral, Urethra

4. Dorsal, urethra

The skull of frog is:

1. Acondylic

2. Monocondylic

3. Dicondylic

4. Polycondylic

The hind brain of frog consists of:

1. Pons and Medulla

2. Cerebellum and Pons

3. Hypothalamus and Thalamus

4. Cerebellum and Medulla