Class Aves

Q.

Grinding mill of earthworm:

1. stomach

2. gizzard

3. typhlosole

4. pharynx

Q. The beak of birds is composed of

1. chitin
2. keratin
3. collagen
4. elastin

Q. The genus name of our national bird is

1. Pavo
2. Corvus
3. Columba
4. Struthio

Q.

Which of the following is found only in birds?

1. Gizzard for grinding food as teeth are absent.

2. Wings

3. Direct development

4. Beak

Q.

Grinding mill in earthworm is:

1. Gizzard

2. Pharynx

3. Stomach

4. Typhlosole

Q. Among which of the following animals do we see the presence of a gizzard?

1. Birds and roundworms
2. Birds and snakes
3. Birds, earthworm and cockroach
4. Earthworm and sponges

Q.

Bones with air cavities occur in

1. Alligator

2. Corvus

3. Naja

4. Canis

Q. Which among the following features of Aves help in reducing the weight of the body?

1. Presence of single ovary
2. Absence of urinary bladder
3. Pneumatic bones
4. All of these

Q. The forelimbs in birds are modified into

1. patagium
2. wings
3. feathers
4. keel

Q.

Which is not a mammal?

1. Rattus

2. Equus

3. Calotes

4. Felis