syrinx
larynx
synsacrum
synzygy
A. syrinx
Pectoralis major
Pectoralis minor
Intrinsic muscle
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
Tail only
Wings only
both and
beneath the contour feathers.
Bernhard Katz
Alick Isacs
Charles Darwin
Andreas Wagner
three toes
four toes
five toes
any of these
synsacrum
sternum
pygostyle
thoracic mass
amphi-coelous
hetero-coelous
gastro-coelous
platy-coelous
syrinx
larynx
synsacrum
synzygy
Ostrich
Penguin
Emu
Albatros
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
fly for long distance
protect against ectoparasites
exhibit secondary sexual dimorphism
keep the body warm
Crow
Koel
Peacock
Ostrich
faecal matter
nitrogenous wastes
excess salt
both and
instinct
instinct and intuition
instinct and intelligence
both and
ostrich
albatros
penguin
elephant bird
Ostrich
Emu
Archaeopteryx
Pelican
perching type
wading type
raptorial type
running type
Dr. Salim Ali
Dr.MS.Mani
Dr.J.C.Bose
Dr. Jogendra
day light effecting the endocrine glands
search for food
search for shelter
purpose of breeding
middle of the trachea
at the base of trachea where it divides into bronchi
base of tongue
none of these
a mammal
a reptile
abrid
none of these
sharp massive, deeply hooked
stout and acute
chisel sfiaped
long, strong and pointed
heterocoelous
acoelous
opisthocoelous
amphicoelous
Albatros
Hummingbird
Elephant bird
Penguin
larynx
syrinx
synsacrum
pygostyle
aerial life
amphibious life
terrestrial life
aquatic life
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
finch
humming bird
weaver bird
shrew