Zoology Practice MCQs (Most Important and Expected Questions) NET, IAS, State-SET (KSET, WBSET, MPSET, etc.), GATE, CUET, Olympiads etc. Set 12

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Q.16 In the days just after its formation the earth had:

(a) Reducing atmosphere

(b) Oxidative atmosphere

(c) Both “a” and “b”

(d) None of these

Answer: A

Q.17 Zygotes containing “XY” are females in:

(a) Drosophila

(b) In moths

(c) In grasshoppers

(d) None of these

Answer: A

Q.18 The “Y” Chromosomes is sexually neutral in:

(a) Man

(b) In Drosophila

(c) In moth

(d) None of these

Answer: D

Q.19 Marsupial are found in:

(a) Only Australian region

(b) In near arctic and Neotropical regions

(c) Both “a” and “b”

(d) None of these

Answer: D

Q.20 In which stage of Meiosis Cento mere of each dyad divides?

(a) Metaphase I

(b) Metaphase II

(c) Anaphase I

(d) Anaphase II

(e) None of these

Answer: B

Q.1 Coelom is the body cavity originating from

(a) ectoderm

(b) mesoderm

(c) endoderm

(d) none of these

Answer: B

Q.2 Cytopharynx is the structure present in

(a) Amoeba

(b) paramecium

(c) Euglena

(d) foraminifers

(e) none of these

Answer: B

Q.3 Gemmules are the reproductive structures produced in

(a) sponges

(b) Annelids

(c) Arthropods

(d) coelenterates

Answer: A

Q.4 Comb plates are very specific structures of

(a) coelenterates

(b) Arthropoda

(c) ctenophora

(d) none of these

Answer: C

Q.5 Nerve net is present in coelenterates at

(a) in endodermis

(b) below upper epidermis

(c) in mesoglea

(d) not present in coelenterates

Answer: B

Q.6 Circulatory system in insects is

(a) Closed type

(b) open type

(c) lymphic type

(d) All of these

Answer: B

Q.7 Silk is produced by silkworm

(a) larva

(b) adult

(c) pupa

(d) All of these

Answer: A

Q.8 The basic function of a flame cell is

(a) excretion

(b) osmoregulation

(c) digestion

(d) none of these

Answer: A

Q.9 The scale in fishes are

(a) ectodermal

(b) endodermal

(c) mesodermal

(d) different in different fishes

Answer: C