1 - A frog is transferred from 20?C to 30?C, its body temperature:
Rises to 30?C
2 - A homoiothermal animal is one in which:
Body temperature remains constant under all environmental conditions
3 - Bears have thick fur because these animals live in:
Cold climate
4 - Capability to change the colour of skin in frog is termed:
Metachyosis
5 - Capacity of mammals to raise their hairs erect by muscles attached to hair follicles is primarily concerned with:
Greater insulation for preservation of body heat
6 - Capacity to regulate temperature is found in:
Warm-blooded animals
7 - Colouration in frog and other amphibians is due to:
Chromatophores
8 - Dense fur in temperate animals protects them from:
Cold
9 - Difference in colouration of dorsal and ventral surfaces of skin of frog is helpful in:
Both of these
10 - Elephant is inhabitant of hot climate. This is suggested by:
Almost hairless skin
11 - Epidermis in rabbit consists of:
5 strata
12 - Epidermis in the mammals is:
Compound stratified epithelium
13 - Excessive sweating or perspiration in mammals helps mainly in:
Maintaining body temperature at a constant level by losing heat
14 - Exoskeleton in frog consists of:
None of these
15 - Exoskeleton or rabit consists of:
Hairs and claws
16 - Had the dead keratinized cells of our skin been living ones, most important disadvantage would have been:
Growth of bacteria upon skin
17 - Hairs in mammals are derivatives of:
Dermis
18 - In a homoiothermal animal:
Constant body temperature is maintained
19 - In frog the dermis is differentiated into:
Both (a) & (b)
20 - In rabbit the skin is hairy but in frog it is smooth and naked. This feature is necessary because:
Skin in frog is respiratory
21 - In taxidermy, the skin is:
Preserved with the help of chemicals
22 - In the process of tanning the:
Dermis is treated with salts of heavy metals
23 - In which of the strata of epidermis of mammals the pigment carotene is found:
Strarum comeum
24 - Integument is called ""Jack of all things"" because it:
Performs various functions
25 - Living organisms consume the matter constantly and this is replenished from the environment through the process called:
Nutrition
26 - Maintenance of high body temperature helps mammals in carrying out fast:
Respiration
27 - Mammary glands in mammals are modified:
Apocrine swet glands
28 - Mclanin is present generally in which of the following strate of mammalian epidermis:
Stratum malpighi
29 - Milk glands are characteristics feature of:
All mammals
30 - Milky secretion of which of the following glands is responsible forcharacteristic smell of rabbits:
Inguinal glands
31 - Modified sebaceous glands in the margins of eyelids are called:
Meibomian glands
32 - Nails, hoofs and horns are examples of:
Keratinized derivatives
33 - Nature of mammary glands is:
Apocrine
34 - Normaly body temperature of man is 98.6?F but of rabbit is:
96?F
35 - Olive green colour of skin of frog is due to:
Due to combined effect of all of these
36 - One of the mechanisms for increasing heat production and conservation in mammals involves:
Decreased flow of blood into skin to decrease heat transfer to it
37 - Pelage is the term given to:
Hairy covering of skin
38 - Poikilothermy in the animals means:
Fluctuating body temperature
39 - Presence of mucous over the skin of frog is an adaptation for:
Cutaneous respiration
40 - Regulation of body temperature in a homiotherms during high environmental temperature would involve:
Dialation of blood vessels of skin
41 - Sebaceous glands occur in rabbits in:
Skin dermis
42 - Secretion of sebaceous glands in mammals helps mainly in:
Making skin soft and supple
43 - Several pairs in two ventrolateral rows the mammary glands are found in:
Dogs, cat, pig
44 - Shedding of skin by frog is called:
Moulting
45 - Shivering and clattering of teeth in extreme cold are concerned with:
Production of heat
46 - Skin of frog is characterized by the absence of:
Scales
47 - Some mammals also hibernate. The body temperature of these animals' remains:
Slightly higher than that of surroundings due to combined regulation by skin and fat
48 - Subcutaneous fat in mammals primarily serves to:
Provide thermal insulation against cold
49 - Sweat glands in mammals are concerned primarily with:
Regulation of body temperature
50 - Tear producing glands are:
Lacrymal glands
51 - Temperature regulation by sweating occurs in:
Rabbit
52 - Temperature regulation in animals involves:
Maintenance of a constant body temperature in all conditions
53 - Temperature regulation within the body is helped by:
Blood circulation
54 - The body colour in mammals is determined by:
All of these
55 - The warm-blooded nature of mammals is aimed:
Keeping body temperature constant under fluctuating environmental temperature
56 - Thermoregulatory centre in mammals is located in:
Hypothalamus
57 - Wax of ear"" is produced by:
Ceruminous glands
58 - Whale is warm-blooded animal but survives in cold seas. The main device for keeping the animal warm in thick:
Blubber
59 - When a bird is transferred from 30?C to 10?C, its body temperature:
Is maintained at original constant level due to increased conservation and production of heat
60 - When frog is kept in water for sometime, it sheds a thin covering of skin which is:
Squamous dpithelium
61 - Which group has homiothermal animals:
Whale, pigeon, bat
62 - Which of the following chromatophores in frog have guanin in them:
Iridiccytes
63 - Which of the following features of human skin tends to prevent evaporation of water from it:
Dry, dead cells of stratum corneum
64 - Which of the following glands in skin are responsible for temperature regulation:
Sweat glands
65 - Which of the following helps in keeping warm:
Fatty layer of skin
66 - Which of the following pigments is present throughout the mammalian epidermis:
Melanoid
67 - Which of the following strata in the epidermis of rabbit has eleidin in the cell:
Stratum ludidum
68 - Which of these is a cold blooded (poikilothermal) animal:
Snake or tortoise
69 - Which organ in mammals performs largest number of functions:
Skin
70 - Which sets of characters will be more useful to the animal when outside temperature is considerably higher than body temperature:
Skin soft, with abundant sweat glands
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