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