Zoology Practice MCQs (Most Important and Expected Questions) AIIMS Set 21

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Q.2 Specules are secreted by special mesenchymal amoebocytes called

a) scleroblastsb) microscleresc) myocytesd) collencytese) None of these


Q.3 true nerve cells or ganglion cells occur for the first time in

a) protozoab) poriferac) coelentratad) annelidae) None of these

Answer: E

Q.4 The process by which an organism can replace its lost or damaged body parts is called

a) reformationb) regenerationc) reclamationd) reconstructione) None of these

Answer: B

Q.5 nematocysts are found in

a) protozoab) poriferac) annelidad) molluscae) None of these

Answer: E

Q.6 in polychaetes the locomotory organ is

a)pseudopodiumb) neuropodiumc) notopodiumd) parapodiume) None of these


Q.7 worms belonging to phylum platyhelminthes are commonly known as

a)round wormsb) ring wormsc) segmented wormsd) earth wormse) None of these


Q.8 bipinnaria is the larval form of

a) coelentratab) polychaetac) echinodermatad) cestoda

Answer: C

Q.9 closed type of circulatory system is found in

a) platyhelminthesb) annelidac) poriferad) arthropodae) None of these

Answer: B

Q.10 the two common mosquito genera ,anopheles and culex, can be easily identified by

a) colorb) flying speedc) sized) sitting posturee) None of these

Answer: D

Q.11 sweat glands are epidermal glands found in

a) all birdsb) reptiles and mammalsc) mammals onlyd) birds and reptilese) None of these

Answer: C

Q.12 sternum is absent in

a) mammalsb) birdsc) amphibiansd) fishese) None of these

Answer: C

Q.13 amphioxus belongs to

a) cephalochordatab) hemichordatac) urochordatad) cyclostomae) None of these

Answer: A

Q.14 the urochordates or tunicates are marine animals commonly known as

a) sea cucumberb) sea squirtsc) sea urchin

Answer: B