day light effecting the endocrine glands
search for food
search for shelter
purpose of breeding
A. day light effecting the endocrine glands
instinct
instinct and intuition
instinct and intelligence
both and
Ostrich
Penguin
Emu
Albatros
Ostrich
Emu
Archaeopteryx
Pelican
fly for long distance
protect against ectoparasites
exhibit secondary sexual dimorphism
keep the body warm
ostrich
albatros
penguin
elephant bird
mammals
reptiles
aves
lizards
homiothermic condition and viviparity
horny jaws and four-chambered heart
ossified skeleton and four-chambered heart
bipedal locomotion and body covered with feathers
csursorial
perching
wading
raptorial
swan
falcon
penguin
eagle
bill
pecten
keel
filoplume
finch
humming bird
weaver bird
shrew
faecal matter
nitrogenous wastes
excess salt
both and
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
synsacrum
sternum
pygostyle
thoracic mass
Parrot
Owl
Pigeon
Sunbird
a flightless bird
first digit of hindlimb
a type of corn
none of these
grain-eating birds
meat-eating birds
fruit-eating birds
insect-eating birds
Quill
Filoplume
Down feather
All of these
calcareous
soft and solid
strong and solid
pneumatic
syrinx
larynx
synsacrum
synzygy
Bernhard Katz
Alick Isacs
Charles Darwin
Andreas Wagner
two occipital condyles
one occipital condyle
many occipital condyles
any of these
day light effecting the endocrine glands
search for food
search for shelter
purpose of breeding
Tail only
Wings only
both and
beneath the contour feathers.
amphi-coelous
hetero-coelous
gastro-coelous
platy-coelous
Albatros
Hummingbird
Elephant bird
Penguin
Serpentology
Entomology
Ornithology
Dendrology
monocondylic
dicondylic
amphicondylie
none of these
Charles Darwin
Lamarck
Hippocrates
A. Muller
a mammal
a reptile
abrid
none of these