Class Amphibia

Q.

Give 5 examples of Pisces, Amphibia, Reptilia, Aves and Mammalia.

Q.

Which fish does not have scales on its body?

Q.

What is the function of the 3-chambered heart of an amphibian?

Q.

Amphibians share with reptiles all of the following features except:

1. External ear represented by tympanum

2. External fertilisation and indirect development

3. Ovipary

4. Poikilothermia

Q. The alimentary canal, the urinary tract and the reproductive tract in amphibians opens into a common chamber called as the

1. oesophagus
2. anus
3. cloaca
4. stomach

Q.

Frog is called amphibian because

1. It has no tail

2. It has got lungs

3. Its young one, tadople is aquatic in its habitat

4. It lives both on land and water

Q. Oxygenated blood never goes to heart in:

1. Pisces
2. Mammals
3. Reptiles
4. Aves

Q. Nictitating membrane is useful to frog in

1. covering and protecting eye from water and mud
2. covering and protecting eyelids from mud and other particles
3. far sight
4. short sight

Q.

Name four animals without external ears.

Q. Tympanum represents the ear in

1. man
2. dog
3. elephants
4. salamander

Q.

What is the largest organ in the digestive system of frogs?

Q.

Which fish does not have scales?

Q.

What is the use of tympanum in frogs?

Q. The three chambered heart of frog is not as efficient as the four chambered human heart because

1. oxygenated and deoxygenated blood gets mixed up
2. ventricle does not pump blood properly
3. it does not hold enough blood
4. the heart muscles are not strong

Q. Which among the following is not a characteristic feature of amphibians?

1. Amniotic eggs
2. Moist skin without scales
3. Requirement of water for reproduction
4. Cutaneous respiration

Q. The glands present in the skin of the frog are

1. sweat and mammary
2. sweat and sebaceous
3. sweat and mucous
4. mucous and poisonous

Q. What is common character between Pheretima and Periplaneta?

1. Chitinous exoskeleton
2. Dorsal nerve cord
3. Ventral nerve cord
4. Pseudocoelom

Q.

Except these two, all are cell aggregations in frog as far as sensory system is concerned.

1. Eyes & Skin

2. Ears & Nose

3. Eyes & Ears

4. Tongue & Skin

Q. A limbless amphibian is

1. Bufo
2. Rana
3. Ichthyophis
4. salamander

Q.

Does a frog have ears?

Q. Nictitating membrane is useful to frog in

1. far sight
2. short sight
3. covering and protecting eye from water and mud
4. covering and protecting eyelids from mud and other particles

Q.

Can frog throw up their stomach?

Q. Cloaca is the common chamber for

1. alimentary canal and reproductive tracts.
2. alimentary canal and urinary tracts.
3. reproductive and urinary tracts.
4. alimentary canal, urinary tracts and reproductive tracts.

Q. In which of the following animals, are the testes located extra abdominally in adults?

1. Platypus
2. Elephants
3. Whales
4. Dogs

Q. Closed circulatory system is found in

1. insects
2. clams
3. lobsters
4. frogs

Q. How do you differentiate between a frog and a toad?

1. Frog has no exoskeleton but toad has scales
2. Frog respires through lungs but toad respires through skin
3. Frog has long legs and wet skin but the toad has short legs and dry skin
4. Frog has a tail but the toad has no tail

Q.

Generic name of common toad is

1. Rana

2. Hyla

3. Bufo

4. Salamandra

Q.

Adult Hyla has

1. tympanum

2. two chambered heart

3. gills

4. caudal fin

Q. Name the phenomenon by which the tail of the tadpole is dissolved and the tadpole changes into an adult.

1. Regeneration
2. Metamorphosis
3. Ferilization
4. Embryogenesis

Q.

Prawns and molluscs are called

1. Fin fish

2. Shell fish

3. True fish

4. Jaw-less fish