Which one of the following groups of structures/organs have similar function?

(1) Typhlosole in earthworm, intestinal villi in rat and contractile vacuole in Amoeba.

(2) Nephridia in earthworm, Malpighian tubules in cockroach and urinary tubules in rat.

(3) Antennae of cockroach, tympanum of frog and clitellum of earthworm.

(4) Incisors of rat, gizzard (proventriculus) of cockroach and tube feet of starfish.

Subtopic:  Phylum Annelida | Phylum Arthropoda |
 77%
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Which one of the following features is common in silverfish, scorpion, dragonfly and prawn?

(1) Two pairs of legs and segmented body

(2) Living chitinous cuticle and two pairs of antennae

(3) Jointed appendages and chitinous exoskeleton

(4) Closed blood circular system

Subtopic:  Phylum Arthropoda |
 85%
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Which one of the following is correctly matched with its one characteristic and the taxon?

Animals Characteristic Taxon
1.   Millipede Ventral nerve cord Arachnida
2. Duckbill platypus      Oviparous Mammalia
3. Silverfish Pectoral and pelvic fins      Chordata
4. Sea anemone Triploblastic Cnidaria
Subtopic:  Phylum Chordata |
 78%
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All mammals without any exception are characterised by

(1) viviparity and biconcave red blood cells

(2) extra-abdominal testes and a four chambered heart

(3) heterodont teeth and 12 pairs of cranial nerves

(4) a muscular diaphragm and milk producing glands

Subtopic:  Study of Aves & Mammals |
 73%
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A lizard-like member of reptilia is sitting on a tree with its tail coiled around a twig. This animal could be

(1) Hemidactylus showing sexual dimorphism

(2) Varanus showing mimicry

(3) garden lizard (Calotes) showing camouflage

(4) Chamaeleon showing protective colouration

Subtopic:  Study of Reptilia |
 65%
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Which of the following does not come under the Class Mammals?

(1) Flying fox

(2) Hedgehog

(3) Manatee

(4) Lamprey

Subtopic:  General Introduction: Vertebrates & Agnatha |
 84%
From NCERT
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During the life-cycle, Fasciola hepatica (liver fluke) infects its intermediate host and primary host at the following larval stages respectively

(1) redia and miracidium

(2) cercaria and redia

(3) metacercaria and cercaria

(4) miracidium and metacercaria

Subtopic:  Phylum Ctenophora & Platyhelminthes |
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Delicate hair-like feathers which remain sparsely distributed over the body are

(1) coverts

(2) filoplumes

(3) plumules

(4) remiges.

 

Subtopic:  Study of Aves & Mammals |
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Which one feature is common to leech, cockroach and scorpion?

(1) Nephridia

(2) Ventral nerve cord

(3) Cephalization

(4) Antennae

 89%
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National bird of India is

(1) Psittacula

(2) Passer domesticus

(3) Pavo cristatus

(4) Parakeet

Subtopic:  Study of Aves & Mammals |
 83%
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