Biology 11 Chapter - 9
Diversity Among Animals - 45
1.
The fore limbs are adapted for?
a) Perching
b) Flying
c) Swimming
d) Walking
2.
Feathers are the charactristic feature of?
a) Fishes
b) Amphibians
c) Birds
d) Reptiles
3.
In aves, feathers make the?
a) Exoskeleton
b) Respiratory system
c) Hydrostatic skeleton
d) Endoskeleton
4.
Which part of many birds body are covered with scales?
a) Legs
b) Beak
c) Whole body
d) Wings
5.
Heart of birds is ___ chambered?
a) 5
b) 4
c) 2
d) 3
6.
Which one of the following is not the charactristic of birds?
a) Light bones
b) Powerful jaws
c) Jaws modied into beak
d) No teeth
7.
Which one of the following is true about birds?
a) Endothermic
b) B and c are correct
c) Cold blooded
d) Warm blooded
8.
Which one of the following is true about birds?
a) Only right aorta
b) Hibernation
c) Both aorta
d) Only left aorta
9.
The gizzard in birds is used for?
a) Voice production
b) Respiration
c) Crushing food
d) Excretion
10.
The voice box of birds is?
a) Pharynx
b) Syrinx
c) Trachea
d) Lyrinx
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