Mammal Quiz:
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
Dolphin was placed amongst mammals by
(a) Hippocrates
(b) Empedocles
(c) Thales
(d) Aristotle
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
Life span of elephant is about ……………. years
(a) 30 – 40
(b) 10 – 20
(c) 60 – 70
(d) 20 – 30
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
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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
Trochloear notch in human skeloton 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
In mammals, oxygenated blood enters the heart at the
(a) Right atrium
(b) Left atrium
(c) Right ventricle
(d) Left ventricle
Which type of centrum is found in the vertebra of mammals?
(a) Heterocoelous
(b) Amphicoelous
(c) Amphiplatyan
(d) Procoelous
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
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 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
The chief distinguishing features of the mammal are
(a) Hairy skin and ovipary
(b) Hairy skin and mammary glands
(c) Mammary glands and teeth
(d) Pinna and teeth
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Some mammals also hibernate. Their body temperature during hibernation, as compared to the surroundings remain
(a) Same as that of surroundings
(b) Much lower due to temperature regulation by skin
(c) Much higher due to fat accumulation beneath the skin
(d) Slightly higher than that of surroundings due to combined regulation by skin and fat
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
