Solved Mcqs of Zoology__ AWI

 

Solved Mcqs of Zoology

(1) Despite the structural diversities they are characterized by having soft body protected by calcareous shell developing from the mantle layer.

(a) Corals
(b) Foraminiferous
(c) Molluses
(d) None of these

(c) Molluses

 

(2) The members of the phylum are exclusively Marine.

(a) Porifera
(b) Coelenterata
(c) Echino-dermata
(d) None of these

(c) Echino-dermata

 

(3) How many paired legs are present in Arachnids?

(a) 2 pairs
(b) 3 pairs
(c) 4 pairs
(d) None of these

(c) 4 pairs

(4) A true Coelom is absent in:

(a) Platyhelminthes
(b) Mollusca
(c) Insects
(d) None of these

(a) Platyhelminthes

(5) A single aperture is present in

(a) Nematoda
(b) Cridaria
(c) Annelida
(d) None of these

(b) Cridaria

(6) The following represents Enterocoelous phylum.

(a) Annelida
(b) Mollusca
(c) Echinodermata
(d) None of these

 (c) Echinodermata

(7) It is exclusively a Parasitic group.

(a) Ciliata
(b) Mestigophora
(c) Rhizopoda
(d) Sporozoa
(e) None of these

 

(d) Sporozoa

(8) Most species of Animal Kingdom belong to this Class:

 

(a) Acazina
(b) Hexapoda
(c) Crustacea
(d) None of these

(b) Hexapoda

(9) Insect mouth parts are serially homologous.

(a) Claspers
(b) Sting apparatus
(c) Cerci
(d) Legs
(e) None of these

(d) Legs

(10) The only groups of animals which are diploblastic in nature:

(a) Platy helminthes
(b) Coelentrata
(c) Porifera
(d) None of these

(b) Coelentrata

11) The phenomenon in which larva becomes sexually mature.

(a) Retrogressive Metamorphosis
(b) Neoteny
(c) Both ‘a’ and ‘b’
(d) None of these

(b) Neoteny

(12) Amphibians have the following number of chambers in their heart.

(a) 2
(b) 3
(c) 4
(d) 5
(e) None of these

(b) 3

(13) The young are born in less developed condition.

(a) Monotremes
(b) Marsupials
(c) Placentals
(d) None of these

(b) Marsupials

 

(14) Limbs of Sea Cows and Sea Lions are the product of:

(a) Convergent Evolution
(b) Divergent Evolution
(c) Parallel Evolution
(d) None of these

 (a) Convergent Evolution

(15) In these animals the teeth are reduced to molars without enamel or no teeth are present.

(a) Moles
(b) Bats
(c) Sloths
(d) None of these

 (c) Sloths

(16) Only hind limbs are lost in:

(a) Snakes
(b) Whales
(c) Bats
(d) None of these

 (b) Whales

(17) Among the following which snake is non-poisonous?

(a) Krait
(b) Python
(c) Viper
(d) None of these

(b) Python

 

(18) Which one is excluded from the Phylum Chordata.

(a) Urochordata
(b) Hemichordata
(c) Cephalochordata
(d) None of these

(b) Hemichordata

(19) The earliest known species of birds is:

(a) Archaeopteryx
(b) Hesperornis

(c) Ichthyornis

(d) None of these

(a) Archaeopteryx

(20) A muscular diaphragm helps to move air into and out of the lungs in:

(a) Amphibians
(b) Reptilians
(c) Avians
(d) Mammalians
(e) None of these

(d) Mammalians