Whales
Penguins
Bears
None of these
D. None of these
Cetacea
Chiroptera
Rodentia
Primata
incisors
canines
premolars
molars
molars
premolars
incisors
canines
man
gorilla
gibbon
chimpanzee
Sirenia
Rodentia
Camivora
Lemuroidea
eutherians
protherians
metatherians
marsupials
kangaroo
shrew
kangaroo rat
spiny ant eater
rabbit
sloth
pika
porcupine
Frog
Rabbit
Pigeon
Lizards
flying lizard
flying fish
bat
none of these
mammals with a single nostril
mammals with a single gill slit
mammals with a single cloacal aperture
mammals with a single mouth
dinosaur
duck
fossil mammal
monotreme mammal
Indian elephant
African elephant
Blue whale
None of these
hairs only
hairs and claws
hairs, claws and horns
hairs, horns and hooves
produce ultrasonic sound
produce infrasonic sound
have powerful nocturnal eyes
have powerful wings
Proboscida
Sirenia
Cetacea
None of these
mammals
birds
reptiles
amphibians
echidna
shrew
dolphin
kangaroo
Artiodactyla
Proboscidea
Sirenia
Perissodactyla
store water
loose water
uses metabolic water
conserve water through kidneys
Proboscida
Ruminants
Perissodactyla
Artiodactyla
gibbon
chimpanzee
oranguttan
none of these
deer
whale
donkey
dog
gnu
mustang
ibex
puma
presence of thecodont dentition
a four-chambered heart
presence of corpus callosum in brain
presence of diaphragm
dogs and cats
monkeys and apes
cows and sheeps
rats and rabbits
lion, tiger, panther, cat
goat, sheep, bison
horse, zebra, donkey, pony
none of these
bony fishes
whales
sea lions
sea anemones
hedgehog
porcupine
shrew
none of these
sweat
milk
wax-like material
oily fluid