perching type
wading type
raptorial type
running type
Serpentology
Entomology
Ornithology
Dendrology
homiothermic condition and viviparity
horny jaws and four-chambered heart
ossified skeleton and four-chambered heart
bipedal locomotion and body covered with feathers
Dr. Salim Ali
Dr.MS.Mani
Dr.J.C.Bose
Dr. Jogendra
Tail only
Wings only
both and
beneath the contour feathers.
monocondylic
dicondylic
amphicondylie
none of these
heterocoelous
acoelous
opisthocoelous
amphicoelous
peacock
emu
penguin
ostrich
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
grain-eating birds
meat-eating birds
fruit-eating birds
insect-eating birds
aerial life
amphibious life
terrestrial life
aquatic life
three toes
four toes
five toes
any of these
middle of the trachea
at the base of trachea where it divides into bronchi
base of tongue
none of these
amphi-coelous
hetero-coelous
gastro-coelous
platy-coelous
Quill
Filoplume
Down feather
All of these
csursorial
perching
wading
raptorial
Parrot
Owl
Pigeon
Sunbird
ostrich
albatros
penguin
elephant bird
Charles Darwin
Lamarck
Hippocrates
A. Muller
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
parrot
peacock
kiwi
pigeon
day light effecting the endocrine glands
search for food
search for shelter
purpose of breeding
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
instinct
instinct and intuition
instinct and intelligence
both and
Albatros
Hummingbird
Elephant bird
Penguin
Kiwi
Ostrich
Penguin
All of these
sharp eyesight
keen smelling power
both and
sharp eyesight and poor smelling power
Ostrich
Penguin
Emu
Albatros
faecal matter
nitrogenous wastes
excess salt
both and