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4

Chief distinguishing features of mammals are

A. hairy skin and ovipary

B. hairy skin and mammary glands

C. mammary glands and teeth

D. pinnae and teeth

Correct Answer :

B. hairy skin and mammary glands


Related Questions

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4

Spider differs from insect as

A. spider has three pairs of legs

B. insect has four pairs of legs

C. spider has four paris of legs

D. none of these

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4

Which one of the following sets of animals are homeothermic ?

A. Salamandar, lizard, penguin and bat

B. Tortoise, crocodile, crow and bat

C. Crow, penguin, bat and rat

D. Turtle, ostrich, spiny ant eater and dog

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4

The term Thylum' in taxonomy was given by

A. John Ray

B. Carolus Linnaeus

C. G.L. Cuvier

D. All of these

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Which of the following is not a deuteros-tome phylum ?

A. Mollusca

B. Echinodermata

C. Hemichordata

D. Urochordata

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Which of the following have played a part in human evolution, different races adapting to different climate ?

A. Geographical isolation

B. Reproductive isolation

C. Behavioural isolation

D. Hybrid in viability

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4

Platyhelminthes are called

A. flat worms

B. roundworms

C. tapeworms

D. blind worms

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4

Which of the following has no segmentation?

A. Hydra

B. Earthworm

C. Centipede

D. Cockroach

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4

Animals belonging to order Rodentia have

A. long incisors

B. long canines

C. short canines

D. short incisors

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4

A pearl oyster belongs to class

A. mollusca

B. bivalvia

C. scaphopoda

D. gastropoda

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4

Histological differentiation is absent in

A. Amoeba

B. Hydra

C. Earthworm

D. Cockroach

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4

Nauplius larva belongs to

A. insects

B. shrimps

C. echinoderms

D. molluscs

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4

Which one is characteristic for birds ?

A. They are flying animals

B. They are warm blooded

C. They are bipedal and have feathers

D. They are quadruped and have scales

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4

Which of the following groups of characters is present in all chordates in some or other stage in their life ?

A. Mammary glands, hairs, gill slits

B. Notochord, gill slits and dorsal ! tubular nervous system

C. Notochord, scales and dorsal tubular nervous system

D. Gill slits, vertebral column and notochoitl

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4

Cephalophoda is a class of animals in which

A. notochord extends upto head

B. foot is located on head

C. head is located on foot

D. head is fused with thorax

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Character common in spider, cockroach and centipede is

A. compound eyes

B. joint legs

C. book lungs

D. green glands

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4

Sea horse is a

A. fish

B. mammal

C. bird

D. none of these

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4

Largest animals belong to class

A. arthropoda

B. pisces

C. mammalia

D. reptilia

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In which of the following sets, groups are not correctly matched ?

A. Onychophora, Myriapoda, Arachnida

B. Hydrozoa, Scyphozoa, Anthozoa

C. Polychaeta, Hirudiniea, Oligochaeta

D. Gastropoda, Rhizopoda, Scaphopoda

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4

Cephalisation is a characteristic feature of

A. immotile, radially symmetrical animals

B. motile, bilaterally symmetrical animals

C. bilaterally symmetrical, non-motile terrestrial animals

D. both (b) and (c)

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The main basis of classification of Phylum Protozoa is

A. size

B. locomotary organelles

C. shape

D. number of nuclei

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Pheretivia is placed in class

A. annelida

B. chaetopoda

C. polychaeta

D. oligochaeta

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The generic name of peacock is

A. Passer domesticus

B. Pavo cristatus

C. Psittacula krameri

D. None of these

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Bilateral symmetry, metameric segmentation, coelom and open circulatory system are characters of

A. annelida

B. arthropoda

C. mollusca

D. echinodermata

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Physalia, the "Portugese man of War" belongs to class

A. Coelenterata

B. Hydrozoa

C. Scyphozoa

D. Anthozoa

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The smallest unit of classification in animals is

A. variety

B. species

C. sub species

D. genus

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An insect differs from a spider in the following ways :

A. Insect has 6 pairs of legs and one pair of wings while spider has 4 pairs of legs and no wings

B. Insect has 4 pair of legs and two pairs of wings while spider has 3 pairs of legs and no wings

C. Insect has 3 pairs of legs and two pairs of wings and spider has 4 pairs of legs and no wings

D. Insect has 3 pairs of legs and generally no wings while spider has 5 pairs of legs and generally one pair of wings

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4

A definite number of body segments is found in

A. leech

B. tapeworm

C. earthworm

D. slug

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One of the following is considered as a living and connecting link between Annelida and Arthropoda:

A. Peripatus

B. Limulus

C. Balanoglossus

D. Sphenodon

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Which of the following animals has a diaphragm between the thorax and abdomen ?

A. Frog

B. Lizard

C. Pigeon

D. Whale

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The term 'Protista' was given by

A. Carolus Linnaeus

B. E. Haeckel

C. G.L. Cuvier

D. John Ray