Which one of the following statements about certain given animals is correct?

  • Round worms (Aschelminthes) are pseudocoelomates

  • Molluscs are acoelomates

  • Insects are pseudocoelomates

  • Flat worms (Platyhelminthes) are coelomates

Which one of the following groups of animals is bilaterally symmetrical and triploblastic?

  • Coelenterates (cnidarians)

  • Aschelminthes (round worms)

  • Ctenophores

  • Sponges

Which one of the following pairs of animal comprises ‘jawless fishes’?

  • Lampreys and eels

  • Mackerels and rohu

  • Lampreys and hag fishes

  • Guppies and hag fishes

Peripatus is a connecting link between

  • Ctenophora and Platyhelminthes

  • Mollusca and Echinodermata

  • Annelida and Arthropoda

  • Coelenterata and Porifera

Which one of the following in birds, indicates their reptilian ancestry?

  • Scales on their hind limbs

  • Four chambered heart

  • Two special chambers crop and gizzard in their digestive tract

  • Eggs with a calcareous shell

Which one of the following is not a characteristic of phylum-Annelida?

  • Closed circulatory system

  • Segmentation

  • Pseudocoelom

  • Ventral nerve cord

Which one of the the following phyla is correctly matched with its two general characteristics?

  • Arthropoda − Body divided into head, thorax and abdomen and respiration by mouth

  • Chordata − Notochord at early stage only and separate anal and urinary openings to the outside

  • Echinodermata − Pentamerous radial symmetry and mostly internal fertilization

  • Mollusca − Normally oviparous and development through a trochophore or veliger larva

Ascaris is characterised by

  • absence of true coelom but presence of metamerism

  • presence of neither true coelom nor metamerism

  • presence of true coelom but absence of metamerism

  • presence of true coelom and metamerism (metamerisation)

Which one of the following groups of three animals each is correctly matched with their one characteristic morphological feature?

 

Animals

 

Morphological Feature

(1)    

Liver fluke, sea anemone, sea cucumber      

– 

Bilateral

(2)

Earthworm, prawn, scorpion

–

Jointed appendages

(3)

Scorpion, spider, cockroach

–

Ventral solid central nervous system

(4)

Cockroach, locust, Taenia

–

Metameric segmentation

 
  • 1
  • 2
  • 3
  • 4

Which one of the following pairs is mismatched?

(1)

Pila globosa

–

pearl

(2)

Apis indica

–

honey

(3)

Kenia lacca

–

lac

(4)

Bombyx mori

–

silk
  • 1
  • 2
  • 3
  • 4

What is common between parrot, platypus and kangaroo?

  • Homeothermy

  • Toothless jaws

  • Functional post-anal tail

  • Oviparity

Which one of the following is a matching pair of a body feature and the animal possessing it?

(1)

Post-anal tail

–

Octopus

(2)

Ventral Central nervous system

–

Leech

(3)

Pharyngeal gills slits absent in embryo

–

Chamaeleon

(4)

Ventral heart

–

Scorpion
  • 1
  • 2
  • 3
  • 4

Which of the following pairs are correctly matched?

 

Animals

 

Morphological features

A.

Crocodile

–

4-chambered heart

B.

Sea urchin

–

Parapodia

C.

Obelia

–

Metagenesis

D.

Lemur

–

Thecodont

  • A, C and D

  • B, C and D

  • Only A and D

  • Only A and B

What is true about Nereis, Scorpion, Cockroach and Silver fish?

  • They all have jointed paired appendages

  • They all possess dorsal heart

  • None of them is aquatic

  • They all belong to the same phylum

Which one of the following is not a living fossil?

  • King crab

  • Sphenodon

  • Archaeopteryx

  • Peripatus

Which one of the following is a matching set of a phylum and its three examples?

  • Cnidaria − Bonellia, Physalia, Aurelia

  • Platyhelminthes −  Planaria, Schistosoma, Enterobius

  • Mollusca − Loligo, Teredo, Octopus

  • Porifera − Spongilla, Euplectella, pennatula

Metameric segmentation is the characteristic of

  • Platyhelminthes and Arthropoda

  • Echinodermata and Annelida

  • Annelida and Arthropoda

  • Mollusca and Chordata

Biradial symmetry and lack of cnidoblasts are the characteristics of :

  • Starfish and sea anemone

  • Ctenoplana and Beroe

  • Aurelia and Paramecium

  • Hydra and starfish

In which one of the following sets of animals do all the four give birth to young ones?

  • Lion, bat, whale, ostrich

  • Platypus, penguin, bat, hippopotamus

  • Shrew, bat, cat, kiwi

  • Kangaroo, hedgehog, dolphin, Loris

Two common characters found in centipede, cockroach and crab are:

  • compound eyes and anal cerci

  • jointed legs and chitinous exoskeleton

  • green gland and tracheae

  • book lungs and antennae

A sessile, cylindrical and radial symmetrical life form is found in

  • Hydra

  • Obelia

  • Adamsia

  • all of the above

Which of the following represent the correct combination without any exception?

Characteristic

Class

Mammalia

Chondrichthyes

Cyclostomata

Aves

  • Mammary gland; hair on body; pinnae; two pairs of limbs

  • Mouth ventral; gills without operculum; skin with placoid scales; persistent notochord

  • Sucking and circular mouth; jaws absent; integument without scales; paired appendages

  • Body coverd with feathers; skin moist and glandular; lungs with air sacs; fore limbs form wings

Which of the following animals is not viviparous?

  • Flying fox (bat)               

  • Elephant

  • Platypus

  • Whale

Pick the odd pair out.

  • Porifera : choanoflagellates

  • Cnidaria : nematocysts

  • Nematoda : pseudocoelom

  • Mollusca : torsion

Chitin is a polysaccharide found in the exoskeleton of

  • prawn

  • insects

  • crabs

  • all of these

Which of these is not a coelenterate?

  • Sea anemone

  • Sea lily

  • Sea pen

  • Sea fur

Protonephridia are the excretory structures present in

  • Both 1 and 3

  • Planaria

  • roundworm

  • tapeworm

Carapace is present can be observed in

  • Hemidactylus

  • Testudo

  • Naja

  • Bufo

Closed circulatory system is not found in

  • octopus

  • tunicates

  • echinoderms

  • squids

Polyp phase is absent in the life cycle of:

  • Hydra

  • Hormiphora

  • Pennatula

  • Physalia

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Practice Zoology Quiz Questions and Answers