Tail only
Wings only
both and
beneath the contour feathers.
C. both and
homiothermic condition and viviparity
horny jaws and four-chambered heart
ossified skeleton and four-chambered heart
bipedal locomotion and body covered with feathers
mammals
reptiles
aves
lizards
two occipital condyles
one occipital condyle
many occipital condyles
any of these
Charles Darwin
Lamarck
Hippocrates
A. Muller
parrot
peacock
kiwi
pigeon
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
grain-eating birds
meat-eating birds
fruit-eating birds
insect-eating birds
Dr. Salim Ali
Dr.MS.Mani
Dr.J.C.Bose
Dr. Jogendra
Asia
Africa
America
Antarctica
Bernhard Katz
Alick Isacs
Charles Darwin
Andreas Wagner
Quill
Filoplume
Down feather
All of these
Serpentology
Entomology
Ornithology
Dendrology
finch
humming bird
weaver bird
shrew
Parrot
Owl
Pigeon
Sunbird
synsacrum
sternum
pygostyle
thoracic mass
day light effecting the endocrine glands
search for food
search for shelter
purpose of breeding
ectoderm
mesoderm
endoderm
skin
heterocoelous
acoelous
opisthocoelous
amphicoelous
ostrich
albatros
penguin
elephant bird
fly for long distance
protect against ectoparasites
exhibit secondary sexual dimorphism
keep the body warm
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
a flightless bird
first digit of hindlimb
a type of corn
none of these
Kiwi
Ostrich
Penguin
All of these
crow, sun-bird, flower pecker
myna, peacock, parrot
weaver bird, sun-bird, flower pecker
all of these
a mammal
a reptile
abrid
none of these
csursorial
perching
wading
raptorial
instinct
instinct and intuition
instinct and intelligence
both and
larynx
syrinx
synsacrum
pygostyle
Crow
Koel
Peacock
Ostrich
three toes
four toes
five toes
any of these