Charles Darwin
Lamarck
Hippocrates
A. Muller
A. Charles Darwin
ostrich
albatros
penguin
elephant bird
ectoderm
mesoderm
endoderm
skin
fly for long distance
protect against ectoparasites
exhibit secondary sexual dimorphism
keep the body warm
two occipital condyles
one occipital condyle
many occipital condyles
any of these
perching type
wading type
raptorial type
running type
aerial life
amphibious life
terrestrial life
aquatic life
New Zealand
India
Japan
Australia
sharp massive, deeply hooked
stout and acute
chisel sfiaped
long, strong and pointed
grain-eating birds
meat-eating birds
fruit-eating birds
insect-eating birds
a flightless bird
first digit of hindlimb
a type of corn
none of these
Pavo cristatus
Gallus gallus
Columbia livia
None of these
Dr. Salim Ali
Dr.MS.Mani
Dr.J.C.Bose
Dr. Jogendra
a type of air sacs related to ventilation
a fork shaped structure fused and formed by clavicles
a strucutre present in trachea for producing sound
none of these
Crow
Koel
Peacock
Ostrich
Tail only
Wings only
both and
beneath the contour feathers.
syrinx
larynx
synsacrum
synzygy
csursorial
perching
wading
raptorial
Ostrich
Emu
Archaeopteryx
Pelican
Pectoralis major
Pectoralis minor
Intrinsic muscle
None of these
sharp eyesight
keen smelling power
both and
sharp eyesight and poor smelling power
heterocoelous
acoelous
opisthocoelous
amphicoelous
crow, sun-bird, flower pecker
myna, peacock, parrot
weaver bird, sun-bird, flower pecker
all of these
Quill
Filoplume
Down feather
All 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
swan
falcon
penguin
eagle
homiothermic condition and viviparity
horny jaws and four-chambered heart
ossified skeleton and four-chambered heart
bipedal locomotion and body covered with feathers
parrot
peacock
kiwi
pigeon
a mammal
a reptile
abrid
none of these
finch
humming bird
weaver bird
shrew