The diagnostic features of mammals are
presence of pinna and diaphragm
presence of hair and mammary gland
presence of sweat and sebaceous glands
viviparity and placenta
Correct Answer :
B. presence of hair and mammary gland
Related Questions
Desert rat in extreme dry conditions
store water
loose water
uses metabolic water
conserve water through kidneys
Monkeys, Apes and Man belong to the order
Lemuroidea
Anthropoidea
Primates
Any of these
In which of the following the volume of lungs remains unchanged during inhalation and exhalation
Frog
Rabbit
Pigeon
Lizards
A tailless hare is
rabbit
sloth
pika
porcupine
Alert, keen, swift, athletic killers belong to order
Fissipeda
Primates
Carnivora
None of these
The diagnostic features of mammals are
presence of pinna and diaphragm
presence of hair and mammary gland
presence of sweat and sebaceous glands
viviparity and placenta
Largest eyes are found in
deer
whale
donkey
dog
Bovine term includes
lion, tiger, panther, cat
goat, sheep, bison
horse, zebra, donkey, pony
none of these
An American homeless horse is
gnu
mustang
ibex
puma
Order Cetacea includes
sea cows, sea lions and walrus
horses, zebras, and tapirs
whales, dolphins and porpoises
goat, sheep and bison
A rodent causing excessive loss to agriculture is
field rat
snail
jackal
parakeet
Whale is a mammal because it bears
a four-chambered heart
a pair of testis
a pair of lungs
a diaphragm between thorax and abdomen
Marsupial pouch and epipubic bones are never found in
eutherians
protherians
metatherians
marsupials
Tusks of elephant are elongated
molars
premolars
incisors
canines
A mammal which roils into a ball when alarmed for danger is
hedgehog
porcupine
shrew
none of these
A nocturnal carnivorous mammals whose voice resembles crackling human laugh is
wolf
fox
jackal
hyanea
Which is not a ruminant mammal
Pig
Camel
Cow
Goat
The incisors grow throughout life in
dogs and cats
monkeys and apes
cows and sheeps
rats and rabbits
The tail is flattened horizontally in
bony fishes
whales
sea lions
sea anemones
Sudorific glands in the skin of mammals secrete
sweat
milk
wax-like material
oily fluid
Odd toed ungulates such as horse, zebra, donkey etc. are included under order
Proboscida
Ruminants
Perissodactyla
Artiodactyla
Which of these is cold blooded
Whales
Penguins
Bears
None of these
Sea cow belongs to order
Proboscida
Sirenia
Cetacea
None of these
All mammals have hair except in order
Cetacea
Chiroptera
Rodentia
Primata
Most important characteristic of a mammal is
presence of thecodont dentition
a four-chambered heart
presence of corpus callosum in brain
presence of diaphragm
Chorio-allantoic placenta is found in
eutherian mammals only
eutherians and prototherians
metatherians and prototherians
metatherians and eutherians
Ovoviviparity is found in
echidna
shrew
dolphin
kangaroo
Bats are included under order
Chiroptera
Rodentia
Insectivora
Edentata
Chisel-like incisors are characteristic of
Rodentia
Carnivora
Edentata
Leguminea
A male seal is polygamous and controls a group of females. This group is known as
herd
colony
harem
flock