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1) Hairs in mammals are derivatives of: a. Dermis b. Epidermis c. Mesodermis d. Endodermis
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2) Colouration in frog and other amphibians is due to: a. Chromatophores b. Irridescence of skin c. Presence of pigment in epidermal cells d. None of these
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3) Elephant is inhabitant of hot climate. This is suggested by: a. Its huge size b. Almost hairless skin c. Fleshy feet d. Small eyes
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4) Maintenance of high body temperature helps mammals in carrying out fast: a. Respiration b. Reproduction c. Locomotion d. Digestion
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5) Whale is warm-blooded animal but survives in cold seas. The main device for keeping the animal warm in thick: a. Blubber b. Pelage c. Muscles d. Bllod vessels
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6) Pelage is the term given to: a. Hairy covering of skin b. Skin only c. Muscles below dermis d. None of these
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7) The body colour in mammals is determined by: a. Melanin and melanoid pigments b. Carotene c. Haemoglobin and oxyhaemoglobin d. All of these
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8) In which of the strata of epidermis of mammals the pigment carotene is found: a. Strarum comeum b. Stratum malpighi c. Stratum lucidum d. None of these
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9) Mclanin is present generally in which of the following strate of mammalian epidermis: a. Stratum corneum b. Stratum malpighi c. Stratum lucidum d. None of these
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10) Which of the following pigments is present throughout the mammalian epidermis: a. Melanin b. Melanoid c. Haemoglobin d. Oxyhaemoglobin
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11) Which group has homiothermal animals: a. Whale, pigeon, bat b. Crocodile, alligator, turtle c. Dog-fish, cat-fish, sea-horse d. Frog, toad, salamander
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12) Which of these is a cold blooded (poikilothermal) animal: a. Duct and penguin b. Hippopotamus c. Snake or tortoise d. Rat and Rabbit
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13) Which sets of characters will be more useful to the animal when outside temperature is considerably higher than body temperature: a. Skin smooth covered with oil b. Skin dark, covered with feathers c. Skin rough, with scales d. Skin soft, with abundant sweat glands
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14) The warm-blooded nature of mammals is aimed: a. Producing constant heat energy for physiologiical functions b. Keeping body temperature constant under fluctuating environmental temperature c. Allowing increase in evaporation at body surface d. Speeding anabolic rate
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15) Regulation of body temperature in a homiotherms during high environmental temperature would involve: a. Dialation of blood vessels of skin b. Constriction of blood vessels of skin c. No change in the blood vessels of skin d. Decreased flow of blood without any change in blood vessles
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16) Thermoregulatory centre in mammals is located in: a. Pituitary body b. Skin c. Hypothalamus d. diencephalon
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17) Sweat glands in mammals are concerned primarily with: a. Osmoregulation b. Rendering skin water proof c. Removal of excess salt from body d. Regulation of body temperature
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18) In a homoiothermal animal: a. Blood is cool b. Blood is hot c. Constant body temperature is maintained d. Body temperature veries with that of environment
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19) Secretion of sebaceous glands in mammals helps mainly in: a. Regulating body temperature b. Making skin soft and supple c. Plugging pores of body to keep body warm d. Killing bacteria upon skin
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20) Which of the following helps in keeping warm: a. Fatty layer of skin b. Khairs on skin c. Pigment in skin d. Rsih blood supply in skin
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21) Dense fur in temperate animals protects them from: a. Snow b. Air c. Cold d. Enemies
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22) Bears have thick fur because these animals live in: a. Cold climate b. Hot climate c. Dangerous conditions d. None of these
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23) Exoskeleton or rabit consists of: a. Hairs only b. Hairs and claws c. Hairs, claws and hoofs d. Hairs, horns and hoofs
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24) Exoskeleton in frog consists of: a. Hairs b. Scales c. Both of these d. None of these
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25) Mammary glands in mammals are modified: a. Apocrine swet glands b. Modified sebaceous glands c. Ecrine sweat glands d. None of these
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26) Modified sebaceous glands in the margins of eyelids are called: a. Lacrymal glands b. Sudoriferous glands c. Meibomian glands d. Perineal glands
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27) Sebaceous glands occur in rabbits in: a. Skin dermis b. Skin epidermis c. Gastric epithelium d. Intestinal epithelium
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28) Which organ in mammals performs largest number of functions: a. Skin b. Rectum c. Kidneys d. Urinary bladder
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29) "Wax of ear" is produced by: a. Meibomian glands b. Ceruminous glands c. Zeis glands d. Inguinal glands
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30) Milky secretion of which of the following glands is responsible forcharacteristic smell of rabbits: a. Mammary glands b. Inguinal glands c. Zeis glands d. Meibomian glands
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31) Several pairs in two ventrolateral rows the mammary glands are found in: a. Cow, sheep, goat b. Dogs, cat, pig c. Rodents d. None of these
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32) Had the dead keratinized cells of our skin been living ones, most important disadvantage would have been: a. Stopping of perspiration b. Growth of bacteria upon skin c. Entrance of bacteria into body through skin d. Stopping of hair growth upon skin
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33) A homoiothermal animal is one in which: a. Body temperature changes with that of environment b. Body temperature remains constant under all environmental conditions c. Body temperature first changes according to environmental temperature but soon returns to normal constant level d. Body temperature remains at constant level for some time but ultimately changes according to environmental temperature
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34) One of the mechanisms for increasing heat production and conservation in mammals involves: a. Decreased flow of blood into skin to increase heat transfer to it b. Decreased flow of blood into skin to decrease heat transfer to it c. Decreased flow of blood into skin to increase heat transfer from it d. Increased flow of blood into skin to decrease heat transfer from it
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35) Which of the following features of human skin tends to prevent evaporation of water from it: a. Presence of sweat glands and their secretion b. Dry, dead cells of stratum corneum c. Subcutaneous fat d. Presence of melanin
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36) Milk glands are characteristics feature of: a. All vertebrates b. All mammals c. Placental mammals d. Man and domestic animals
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37) Capacity of mammals to raise their hairs erect by muscles attached to hair follicles is primarily concerned with: a. Fighting enemies b. Faster evaporation of sweat c. Greater insulation for preservation of body heat d. Greater perception of contact stimuli
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38) Epidermis in the mammals is: a. Glandular epithelium b. Compound stratified epithelium c. Sensory epithelium d. Simple squamous epithelium
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39) Subcutaneous fat in mammals primarily serves to: a. Provide a reserve store b. Provide thermal insulation against cold c. Act as a cushion against shocks d. Provide contour to the body
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40) Capacity to regulate temperature is found in: a. Warm-blooded animals b. Angry animals c. Cold-clooded animals d. All of these
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41) When frog is kept in water for sometime, it sheds a thin covering of skin which is: a. Cuboidal epithelium b. Squamous dpithelium c. Columnar epithelium d. Ciliated epithelium
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42) Shivering and clattering of teeth in extreme cold are concerned with: a. Dialation of blood vessels b. Constriction of blood vessels c. More perspiration d. Production of heat
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43) Tear producing glands are: a. Lacrymal glands b. Zeis glands c. Meibomian glands d. Herderian glands
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44) Integument is called "Jack of all things" because it: a. Performs various functions b. Is most incomplete organ c. Give shape to the body d. Protects the body
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45) Nature of mammary glands is: a. Apocrine b. Merocrine c. Holocrine d. None of these
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46) Temperature regulation within the body is helped by: a. Blood circulation b. Decreasing urination c. Changing rate of digestion d. None of these
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47) In all vertebbrates the circulatory system utilizes following transport media: a. Blood b. Lymph c. Both of these d. None of these
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48) Blood transports: a. Oxygen only b. Nutrients and nitrogen wastes c. Respiratory gases, nutrients and nitrogenous waste d. Respiratory gases and nitrogenous wastes
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49) One of the peculiar feature of cardiac muscles forming myocardium of heart is that: a. They work involuntarily b. They are both striped, unstriped and branched c. They never undergo fatigue d. They have all these properties
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50) Heart is made up of: a. Epicardium b. Myocardium c. Endocardium d. All of these structures
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51) A cavity surrounding the heart is called: a. Peritoneal cavity b. Pericardial cavity c. Perichondrial cavity d. Perineural cavity
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52) Heart in frog lies within: a. Thoracic cavities b. Abdominal cavity between two fore limbs c. Mediastinal space d. None of these
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53) In between the thoracic cavities the space containing heart in rabbit is called: a. Pleura b. Mediastinum c. Diaphragm d. None of these
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54) Heart in frog has certain chambers which are not found in rabbit: a. Auricles b. Ventricles c. Sinus venosus and conus arteriosus d. None of these
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55) Sinus venosus is formed by union of: a. Two precavals b. One postcaval c. All of these d. None of these
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56) Opening of pulmonary veins in the left auricle do not carry any valve but there is no back-flow or blood while left auricle contracts because of the fact that: a. Valves in pulmonary veins check back flow b. Contraction of left auricle automatically closes the opening of pulmonary veins c. Inter-auricular septum helps to close the opening d. There is some other reason
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57) Chordae tendinae connecting dorsal and ventral flaps of atrioventricular valve in from help in: a. Making functioning of valve more effective b. Checking relaxation of ventricular walls during contraction of auricles c. Protecting eversion of atrioventricular valve towards auricles by pressure of blood in ventricles d. None of these functions
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58) Pylangium and synangium in frog's heart are divisions of: a. Aurricles b. Ventricle c. Conus arteriosus d. None of these
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59) Spiral valve in the heart of frog divides pylangium into: a. Cavum aorticum and cavum pulmocutaneum b. Cavum dorsale and cavum centrale c. Cavum aorticum and cavum pulmonale d. Cavum dorasle and cavum ventrale
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60) Short aortic trunci in frog are formed by division of: a. Pylangium b. Synangium c. Both of these d. None of these
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