Class Amphibia

Q. The heart in amphibians has

1. two atria and two ventricles
2. one atrium and two ventricles
3. two atria and one ventricle
4. one atria and one ventricle

Q. Tympanum represents the ear in

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

Q.

What is meant by nictitating membrane?

Q. Which among the following is true for a tetrapod?

1. Four limbs (or had ancestors that had four limbs)
2. Has internal gills
3. Do not have a vertebral column
4. Do not have well developed sense organs

Q. Which among the following is an example of an ectothermal cold blooded animal?

1. Penguin
2. Lemur
3. Owl
4. Frog

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.

Identify an arboreal organism from the following

1. Frog

2. Eagle

3. Crocodile

4. Dolphin

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

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

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

Q. The frog is called as an amphibian because

1. it has no tail
2. it has lungs
3. its tadpole is aquatic
4. it lives on both land and water

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.

Name a limbless amphibian.

1. Rana

2. Hyla

3. Ichthyophis

4. Rhacophorus

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. 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. A limbless amphibian is

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

Q. Which among the following is an example of an ectothermal cold blooded animal?

1. Penguin
2. Lemur
3. Owl
4. Frog

Q.

Amphibians breed

1. In crevices

2. In water

3. On trees

4. In soil

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.

Flying frog belongs to genus :

1. Hyla

2. Pipa

3. Bufo

4. Rhacophorous

Q.

Animals which can survive in water and on land are called ___.