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In ribbit, the danger signal is given by

A. sound

B. tail

C. external ear

D. fore limbs

Correct Answer :

B. tail


Related Questions

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Desert rat in extreme dry conditions

A. store water

B. loose water

C. uses metabolic water

D. conserve water through kidneys

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Tusks of elephant are elongated

A. molars

B. premolars

C. incisors

D. canines

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Eutherians are characterised by

A. skin with glands

B. hairy skin

C. true placentation

D. locomotary hindlimbs

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The hedgehog belongs to the order

A. Rodentia

B. Insectivora

C. Sivenia

D. Shiroptera

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Ovoviviparity is found in

A. echidna

B. shrew

C. dolphin

D. kangaroo

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Most important characteristic of a mammal is

A. presence of thecodont dentition

B. a four-chambered heart

C. presence of corpus callosum in brain

D. presence of diaphragm

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Order Cetacea includes

A. sea cows, sea lions and walrus

B. horses, zebras, and tapirs

C. whales, dolphins and porpoises

D. goat, sheep and bison

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A male seal is polygamous and controls a group of females. This group is known as

A. herd

B. colony

C. harem

D. flock

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Monkeys, Apes and Man belong to the order

A. Lemuroidea

B. Anthropoidea

C. Primates

D. Any of these

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Order Monotremata includes

A. mammals with a single nostril

B. mammals with a single gill slit

C. mammals with a single cloacal aperture

D. mammals with a single mouth

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Bats are included under order

A. Chiroptera

B. Rodentia

C. Insectivora

D. Edentata

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Alert, keen, swift, athletic killers belong to order

A. Fissipeda

B. Primates

C. Carnivora

D. None of these

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Sudorific glands in the skin of mammals secrete

A. sweat

B. milk

C. wax-like material

D. oily fluid

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Chorio-allantoic placenta is found in

A. eutherian mammals only

B. eutherians and prototherians

C. metatherians and prototherians

D. metatherians and eutherians

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The ruminant mammals are included under

A. Artiodactyla

B. Proboscidea

C. Sirenia

D. Perissodactyla

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Omvthorhynchus is a

A. dinosaur

B. duck

C. fossil mammal

D. monotreme mammal

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In which of the following the volume of lungs remains unchanged during inhalation and exhalation

A. Frog

B. Rabbit

C. Pigeon

D. Lizards

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An American homeless horse is

A. gnu

B. mustang

C. ibex

D. puma

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Sea cow belongs to order

A. Proboscida

B. Sirenia

C. Cetacea

D. None of these

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A mammal which has a keeled sternum like birds is

A. flying lizard

B. flying fish

C. bat

D. none of these

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A mammal which roils into a ball when alarmed for danger is

A. hedgehog

B. porcupine

C. shrew

D. none of these

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Whale is a mammal because it bears

A. a four-chambered heart

B. a pair of testis

C. a pair of lungs

D. a diaphragm between thorax and abdomen

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Largest eyes are found in

A. deer

B. whale

C. donkey

D. dog

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Bat can fly easily at night because they

A. produce ultrasonic sound

B. produce infrasonic sound

C. have powerful nocturnal eyes

D. have powerful wings

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An important difference between rats and rabbit is in the number of

A. incisors

B. canines

C. premolars

D. molars

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All mammals have hair except in order

A. Cetacea

B. Chiroptera

C. Rodentia

D. Primata

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Odd toed ungulates such as horse, zebra, donkey etc. are included under order

A. Proboscida

B. Ruminants

C. Perissodactyla

D. Artiodactyla

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Marsupial pouch and epipubic bones are never found in

A. eutherians

B. protherians

C. metatherians

D. marsupials

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The exoskeleton of rabbit consists of

A. hairs only

B. hairs and claws

C. hairs, claws and horns

D. hairs, horns and hooves

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Scientific name of man is

A. Dolphins

B. Oractologus cuniculus

C. Homosapiens fassilis

D. Homosapiens sapiens