Cetacea
Chiroptera
Rodentia
Primata
A. Cetacea
Chiroptera
Rodentia
Insectivora
Edentata
presence of thecodont dentition
a four-chambered heart
presence of corpus callosum in brain
presence of diaphragm
field rat
snail
jackal
parakeet
Rodentia
Insectivora
Sivenia
Shiroptera
lemur
loris
baboon
chimpanzee
Artiodactyla
Proboscidea
Sirenia
Perissodactyla
Whales
Penguins
Bears
None of these
rabbit
sloth
pika
porcupine
plantigrade locomotion
digitigrade locomotion
unguligrade locomotion
terrestrial locomotion
sweat
milk
wax-like material
oily fluid
Proboscida
Sirenia
Cetacea
None of these
lion, tiger, panther, cat
goat, sheep, bison
horse, zebra, donkey, pony
none of these
mammals
birds
reptiles
amphibians
produce ultrasonic sound
produce infrasonic sound
have powerful nocturnal eyes
have powerful wings
herd
colony
harem
flock
gibbon
chimpanzee
oranguttan
none of these
wolf
fox
jackal
hyanea
Sirenia
Rodentia
Camivora
Lemuroidea
eutherians
protherians
metatherians
marsupials
Cetacea
Chiroptera
Rodentia
Primata
Frog
Rabbit
Pigeon
Lizards
Fissipeda
Primates
Carnivora
None of these
bony fishes
whales
sea lions
sea anemones
deer
whale
donkey
dog
Indian elephant
African elephant
Blue whale
None of these
Proboscida
Ruminants
Perissodactyla
Artiodactyla
molars
premolars
incisors
canines
hairs only
hairs and claws
hairs, claws and horns
hairs, horns and hooves
skin with glands
hairy skin
true placentation
locomotary hindlimbs
Rodentia
Carnivora
Edentata
Leguminea