The close-set hair which covers the body of rat is called:
(a) Pelage
(b) Muzzle
(c) Vibrissae
(d) Pili tactiles
Which type of placenta is found in a rat?
(a) Epitheliochorial
(b) Haemochorial
(c) Haemoendothelial
(d) Endotheliochorial
Heart of rat differs from that of frog by the absence of
(a) Left atrium
(b) Right atrium
(c) Sinus venosus
(d) Pericardium
Related: Quiz on Reptiles
The common brown rat is
(a) Rattus rattus
(b) Rattus meltada
(c) Rattus norvegicus
(d) Bandicota bengalensis
The chromosome number in Rattus rattus is
(a) 40
(b) 42
(c) 44
(d) 38
Which of the following is absent in a rat?
(a) Tonsils
(b) Renal portal
(c) Gall bladder
(d) All of these
Related: Frog Anatomy Quiz
The average number of youngs produce by a rat in a litter is normally
(a) 6
(b) 8
(c) 10
(d) 12
The three parts of the limb of a rat from proximal to distal end are
(a) Autopodium, zeugopodium and stylopodium
(b) Stylopodium, zeugopodium and autopodium
(c) Stylopodium, autopodium and zeugopodium
(d) Zeugopodium, autopodium and stylopodium
The life span of rat is about
(a) Two years
(b) Four years
(c) Six years
(d) Eight years
Related: Cyanobacteria Quiz
The kidney in rat are
(a) Holonephros
(b) Pronephros
(c) Mesonephros
(d) Metanephros
Which of the following is true of hibernating gland in rat?
(a) It is gland formed during hibernation
(b) It secretes digestive enzymes to metabolise fat
(c) It secretion regulate the body temperature during winter sleep
(d) It is not a gland at all, but a multicellular adipose tissue
In rats scales are present on
(a) Tail
(b) Head
(c) forelimbs
(d) Hindlimbs
Related: Bryophytes Quiz
On feeding habit, rat can be termed
(a) Carnivorous
(b) Herbivorous
(c) Omnivorous
(d) Insectivorous
Which type of circulation is found in rat?
(a) Open and double
(b) Open and single
(c) Closed and single
(d) Closed and double
The teeth of rat are
(a) Homodont, acrodont and diphyodont
(b) Heterodont, thecodont and diphyodont
(c) Heterodont, thecodont and polyphyodonty
(d) Heterodont, pleurodont and polyphyodonty
Related: Skin Anatomy Quiz
Number of lobes in right and left lungs of rat are:
(a) One, three
(b) Three, one
(c) Two, three
(d) Three, two
Cerebral hemispheres of rat are connected by:
(a) Corpus luteum
(b) Corpus callosum
(c) Corpus albicans
(d) Corpus spongiosum
Which of the following teeth are absent in a rat?
(a) Canines and molars
(b) Incisors and molars
(c) Incisors and premolars
(d) Canines and premolars
Related: Tongue Quiz
Rat is
(a) Oviparous
(b) Viviparous
(c) Ovoviviparous
(d) Parthenogenetic
Where do you find Graafian follicles of a rat?
(a) Ovary
(b) Brain
(c) Kidney
(d) Thyroid
Gestation period of rat is
(a) 20-22 days
(b) 28-32 days
(c) 52-65 days
(d) 60-65 days
Related: Whale Quiz
Which of the following is present in a rat not in a frog
(a) Ileum
(b) Jejunum
(c) Stomach
(d) Duodenum
