aerial life
amphibious life
terrestrial life
aquatic life
B. amphibious life
Tail only
Wings only
both and
beneath the contour feathers.
New Zealand
India
Japan
Australia
two occipital condyles
one occipital condyle
many occipital condyles
any of these
Pectoralis major
Pectoralis minor
Intrinsic muscle
None of these
three toes
four toes
five toes
any of these
Asia
Africa
America
Antarctica
Heart is four-chambered consisting of the auricles and two ventricles
Hind-limbs are modified as wings
Mouth is replaced by beak
Aves are warm blooded
peacock
emu
penguin
ostrich
Kiwi
Ostrich
Penguin
All of these
monocondylic
dicondylic
amphicondylie
none of these
sharp eyesight
keen smelling power
both and
sharp eyesight and poor smelling power
Charles Darwin
Lamarck
Hippocrates
A. Muller
ectoderm
mesoderm
endoderm
skin
Bernhard Katz
Alick Isacs
Charles Darwin
Andreas Wagner
larynx
syrinx
synsacrum
pygostyle
bill
pecten
keel
filoplume
csursorial
perching
wading
raptorial
grain-eating birds
meat-eating birds
fruit-eating birds
insect-eating birds
day light effecting the endocrine glands
search for food
search for shelter
purpose of breeding
perching type
wading type
raptorial type
running type
ostrich
albatros
penguin
elephant bird
Pavo cristatus
Gallus gallus
Columbia livia
None of these
homiothermic condition and viviparity
horny jaws and four-chambered heart
ossified skeleton and four-chambered heart
bipedal locomotion and body covered with feathers
Albatros
Hummingbird
Elephant bird
Penguin
finch
humming bird
weaver bird
shrew
a flightless bird
first digit of hindlimb
a type of corn
none of these
mammals
reptiles
aves
lizards
Crow
Koel
Peacock
Ostrich
syrinx
larynx
synsacrum
synzygy
a mammal
a reptile
abrid
none of these