middle of the trachea
at the base of trachea where it divides into bronchi
base of tongue
none of these
B. at the base of trachea where it divides into bronchi
ectoderm
mesoderm
endoderm
skin
day light effecting the endocrine glands
search for food
search for shelter
purpose of breeding
perching type
wading type
raptorial type
running type
heterocoelous
acoelous
opisthocoelous
amphicoelous
Albatros
Hummingbird
Elephant bird
Penguin
Parrot
Owl
Pigeon
Sunbird
instinct
instinct and intuition
instinct and intelligence
both and
monocondylic
dicondylic
amphicondylie
none of these
swan
falcon
penguin
eagle
syrinx
larynx
synsacrum
synzygy
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
sharp massive, deeply hooked
stout and acute
chisel sfiaped
long, strong and pointed
Pavo cristatus
Gallus gallus
Columbia livia
None of these
bill
pecten
keel
filoplume
Ostrich
Emu
Archaeopteryx
Pelican
Charles Darwin
Lamarck
Hippocrates
A. Muller
three toes
four toes
five toes
any of these
Serpentology
Entomology
Ornithology
Dendrology
ostrich
albatros
penguin
elephant bird
faecal matter
nitrogenous wastes
excess salt
both and
parrot
peacock
kiwi
pigeon
finch
humming bird
weaver bird
shrew
Kiwi
Ostrich
Penguin
All of these
Pectoralis major
Pectoralis minor
Intrinsic muscle
None of these
grain-eating birds
meat-eating birds
fruit-eating birds
insect-eating birds
two occipital condyles
one occipital condyle
many occipital condyles
any of these
New Zealand
India
Japan
Australia
sharp eyesight
keen smelling power
both and
sharp eyesight and poor smelling power
Ostrich
Penguin
Emu
Albatros
synsacrum
sternum
pygostyle
thoracic mass