Artiodactyla
Proboscidea
Sirenia
Perissodactyla
presence of thecodont dentition
a four-chambered heart
presence of corpus callosum in brain
presence of diaphragm
store water
loose water
uses metabolic water
conserve water through kidneys
Rodentia
Carnivora
Edentata
Leguminea
lion, tiger, panther, cat
goat, sheep, bison
horse, zebra, donkey, pony
none of these
eutherians
protherians
metatherians
marsupials
Sirenia
Rodentia
Camivora
Lemuroidea
Proboscida
Ruminants
Perissodactyla
Artiodactyla
Indian elephant
African elephant
Blue whale
None of these
echidna
shrew
dolphin
kangaroo
mammals with a single nostril
mammals with a single gill slit
mammals with a single cloacal aperture
mammals with a single mouth
sweat
milk
wax-like material
oily fluid
Dolphins
Oractologus cuniculus
Homosapiens fassilis
Homosapiens sapiens
lemur
loris
baboon
chimpanzee
field rat
snail
jackal
parakeet
skin with glands
hairy skin
true placentation
locomotary hindlimbs
Lemuroidea
Anthropoidea
Primates
Any of these
molars
premolars
incisors
canines
produce ultrasonic sound
produce infrasonic sound
have powerful nocturnal eyes
have powerful wings
plantigrade locomotion
digitigrade locomotion
unguligrade locomotion
terrestrial locomotion
Rodentia
Insectivora
Sivenia
Shiroptera
eutherian mammals only
eutherians and prototherians
metatherians and prototherians
metatherians and eutherians
kangaroo
shrew
kangaroo rat
spiny ant eater
Frog
Rabbit
Pigeon
Lizards
flying lizard
flying fish
bat
none of these
rabbit
sloth
pika
porcupine
India
Malaysia
Africa
New Zealand
sound
tail
external ear
fore limbs
man
gorilla
gibbon
chimpanzee
sea cows, sea lions and walrus
horses, zebras, and tapirs
whales, dolphins and porpoises
goat, sheep and bison