Barr body in mammals present
(a) All the heterochromatin in female cells
(b) One of the two X chromosomes in somatic cells of females
(c) All the heterochromatin in male and female cells
(d) The Y chromosomes in somatic cells
The whale is included among mammals because it has a:
(a) Pair of lungs
(b) Pair of nostrils
(c) Four chambered heart
(d) Diaphragm between thorax and abdomen
Which of the following animals is an example of class mammalia?
(a) Manis
(b) Planorbis
(c) Hydrophis
(d) Psittacula
Egg-laying mammals are grouped as
(a) Eutheria
(b) Prototheria
(c) Rodentia
(d) Metatheria
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The dolphins were placed among mammals by
(a) Hippocrates
(b) Empedocles
(c) Thales
(d) Aristotle
Bat can travel with
(a) Eyes open
(b) Eyes plugged and ears open
(c) Ears plugged and eyes open
(d) Ears closed and eyes plugged
The following lays eggs
(a) Porcupine
(b) Platypus
(c) Kangaroo
(d) Koala
The Zygomatic arch of the rabbit is formed
(a) Maxilla, periotic and jugal
(b) Maxilla, squamosal and jugal
(c) Maxilla, premaxilla and squamosal
(d) Periotic, jugal and palatine
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Mammary glands are modified
(a) Sweat glands
(b) Sebaceous glands
(c) Ceruminous glands
(d) Meibomian glands
The life span of an elephant is about ……………. years
(a) 30 – 40
(b) 10 – 20
(c) 60 – 70
(d) 20 – 30
Select the correct set of animals of class-mammalia
(a) Lion, hippopotamus, penguin, bat
(b) Lion, bat, whale, ostrich
(c) Hippopotamus, penguin, whale, kangaroo
(d) Whale, bat, kangaroo, hippopotamus
Kangaroo is a member of which order?
(a) Monotremata
(b) Marsupialia
(c) Prototheria
(d) Insectivora
Which of the following structures is present characteristically only in mammalian brain?
(a) Corpus fibrosum
(b) Corpus striatum
(c) Corpus luteum
(d) Corpus callosum
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The exchange of gas with a mammal takes place in
(a) Trachea
(b) Bronchioles
(c) Bronchi
(d) Alveoli
Uterus-masculinus in mammals is derived from
(a) Inguinal canal
(b) Wolfian’s duct
(c) Mullerian duct
(d) Ejeculatory duct
Kangaroo is a native of
(a) Africa
(b) Australia
(c) Austria
(d) Mexico
Which of the following structures is present characteristically only in mammalian brain
(a) Corpus fibrosum
(b) Corpus striatum
(c) Corpus luteum
(d) Corpus callosum
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What structures represent segmentation in rabbits?
(a) Vertebral column and ribs
(b) Two pairs of legs
(c) Paired nostrials, ears and eyes
(d) Hair
In mammals, failure of testes to descend into the scrotum is known as
(a) Paedogenesis
(b) Castration
(c) Cryptorchidism
(d) Impotency
The Thermoregulatory center for mammals is located in
(a) Pituitary body
(b) Hypothalamus
(c) Cerebellum
(d) Cerebrum
The order Cetacea includes
(a) Monkey, gorilla and man
(b) Cat, dog, wolf and lion
(c) Whale, dolfin and porpoise
(d) Hippopotamus, pig and giraffe
The Trochloear notch in human skeleton is found in
(a) Tibio fibula
(b) Radius
(c) Ulna
(d) Humerus
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Macula in the utriculus of the Mammalian ear is chiefly concerned with the change in
(a) Frequency of sound
(b) Volume of sound
(c) Vibration of Air
(d) Posture of Animal
One of the following is a very unique feature of the mammalian body
(a) Four chambered heart
(b) Rib cage
(c) Homeothermy
(d) Presence of diaphragm
In mammals, oxygenated blood enters the heart at the
(a) Right atrium
(b) Left atrium
(c) Right ventricle
(d) Left ventricle
The biological name of ‘domestic cat’ is
(a) Panthera domestica
(b) Felis leo
(c) Felis domestica
(d) Panthera indica
Which type of centrum is found in the vertebra of mammals?
(a) Heterocoelous
(b) Amphicoelous
(c) Amphiplatyan
(d) Procoelous
Which one of the following is a metatherian mammal?
(a) Echidna
(b) Pangolin
(c) Shrew
(d) Kangaroo
Which one of the following is egg-laying mammal?
(a) Pangolin
(b) Tachyglossus
(c) Porcupine
(d) Bat
Muscular coordination in mammals is controlled by which part of the brain.
(a) Medulla
(b) Cerebrum
(c) Cerebellum
(d) Olfactory lobes
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Which one of the following is not mammal?
(a) Ant eater
(b) Echidna
(c) Heloderma
(d) Dolphin
Mammals in the geological development of the Earth arose in the period:
(a) Permian
(b) Carboniferous
(c) Jurassic
(d) Oligocene and Eocene
The zoological name of lion is
(a) Felis leo
(b) Panthera tigris
(c) Panthera pardus
(d) Panthera leo persica
Why do mammals lack mucus glands in the skin?
(a) The skin is not slippery
(b) The skin is tough
(c) The epidermis has many layers of cells
(d) The skin is not respiratory
The sweat gland are scanty in
(a) Elephant
(b) Man
(c) Rabbit
(d) Polar bear
The Axis vertebra differs from the atlas vertebra in mammals in the presence of
(a) Neural canal
(b) Neural larch
(c) Odontoid process
(d) Absence of centrum
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The obturator formed in the pelvic girdle of mammals is formed by
(a) Pubis and ischium
(b) Pubis and ilium
(c) Ilium and ischium
(d) Ilium, ischium and pubis
The whale is air breather but can live under water for a long time because it possesses?
(a) Large lungs
(b) Small lungs
(c) Blubber
(d) Retea mirabile
