Zoology Practice MCQs (Most Important and Expected Questions) NET, IAS, State-SET (KSET, WBSET, MPSET, etc.), GATE, CUET, Olympiads etc. Set 27

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Q.20 Raw material for evolution are variation, which are produced through:

(a) Gene mutation

(b) Chromosomal aberration

(c) Both a and b

(d) None of these

Answer: A

Q.1 The disease causing protozoan is:

(a) Amoeba

(b) Paramecium

(c) Stentor

(d) Trypanosoma

(e) None of these

Answer: A

Q.2 Binucleate protozoan is:

(a) Mastigo-amoeba

(b) Toxoplasma

(c) Didymium

(d) Trichonympha

(e) None of these

Answer: E

Q.3 Spicules in sponges are secreted by cells called:

(a) Chromocytes

(b) Thesocytes

(c) Scleroblasts

(d) Spongoblast

(e) None of these

Answer: E

Q.4 Which one of the following coelenterate is also called Portuguese-man of war:

(a) Hydra

(b) Velella

(c) Obelia

(d) Physalia

(e) None of these

Answer: D

Q.5 Pseudocoelomate animals are:

(a) Coelenterates

(b) Nematodes

(c) Annelids

(d) Arthropods

(e) None of these

Answer: B

Q.6 Earth worm belongs to:

(a) Phylum platyhelminthes

(b) Nematode

(c) Mollusca

(d) Arthropoda

(e) None of these

Answer: E

Q.7 The number of arms in octopus is:

(a) Four

(b) Six

(c) Eight

(d) Ten

(e) None of these

Answer: C

Q.8 The excretory organ of cockroach is:

(a) Flame cell

(b) Nephridia

(c) Coxal gland

(d) Green gland

(e) None of these

Answer: E

Q.9 The compound eyes are present in:

(a) Cuttle fish

(b) Sea urchin

(c) Sea mouse

(d) Honey bee

(e) None of these

Answer: D

Q.10 Balanoglossus belongs to:

(a) Hemichordata

(b) Cephalochordata

(c) Urochordata

(d) Craniata

(e) None of these

Answer: A

Q.11 The extinct vertebrates are:

(a) Elasmobranchi

(b) Placodermi

(c) Osteichthyes

(d) All of these

(e) None of these

Answer: B

Q.12 The type of scales found in shark is:

(a) Placoid scale

(b) Ganoid scale

(c) Cosmoid scale

(d) Cycloid scale

(e) None of these

Answer: A