Zoology Practice MCQs (Most Important and Expected Questions) NET, IAS, State-SET (KSET, WBSET, MPSET, etc.), GATE, CUET, Olympiads etc. Set 15

Get top class preparation for competitive exams right from your home: get questions, notes, tests, video lectures and more- for all subjects of your exam.

For complete answers and explanations visit doorsteptutor.com

Q.18 Theory of natural selection was initially proposed by:

a) Darwin b Wallace c both Darwin and Wallace d Eyll

Answer: A

Q.19 Second law of thermodynamics demand

a) energy stability b energy loss during transfer of energy c Energy flow from one form to Another d none of these

Answer: B

Q.20 The basic purpose of ecosystem is

a) maintenance of organisms b energy flow c chemical movements d none of these

Answer: B

Q.1 Contractile vacoule in protozoa is basically responsible for

(a) Excretion (b) osmoregultion (c) Feeding (d) All of these.

Answer: B

Q.2 Pneumatocysts are typically present in

(a) Porifera (b) Annelida (c) Coelentrata (d) Protozoa

Answer: C

Q.3 Pinococysts are present in

(a) Echinodermata (b) Arthropoda (c) Porifera (d) None of these.

Answer: C

Q.4 Nerve cord is dorsally located in

(a) Annelids (b) Mollusca (c) Arthropodes (d) None of these

Answer: D

Q.5 Open circulatory system is present in

(a) Annelids (b) Insects (c) Reptiles (d) Mammals

Answer: B

Q.6 Sponges are present in

(a) Marine (b) Freshwater (c) Moist places (d) Both (a) and (b)

Answer: D

Q.7 Telson is present in

(a) Annelids (b) Arthropoda (c) Molluse (d) Chordates

Answer: B

Q.8 Entamoeba histolytica is a member of class

(a) Scyphozoa (b) Polycheata (c) Mastigophora (d) None of these

Answer: D

Q.9 A house fly has legs

(a) 8 (b) 10 (c) 6 (d) 4

Answer: D

Q.10 Wasps bite using

(a) Mouth (b) Proboscis (c) Genital claspers (d) None of these

Answer: B

Q.11 Number of cranial nerves in fish

(a) 10 (b) 12 (c) 8 (d) None of these

Answer: A