Which of the following structure is associated with
locomotion ?

(i) Parapodia.
(ii) Water vascular system.
(iiii) Radula.
(iv) Proboscis.

1. (i), (ii), (iii), (iv) 

2. (i) only

3. (i), (ii) only

4. (i), (iii) only

Subtopic:  Phylum Annelida | Phylum Echinodermata |
 62%
Level 2: 60%+
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Bony endoskeleton is present in
(i) Pristis
(ii) Hippocampus
(iii) Icthyophis
(iv) Myxine

1. (i), (ii), (iii), (iv) 
2. (ii), (iii) only
3. (ii) only
4. (ii), (iii), (iv) only

Subtopic:  Comparative study of Cartilagenous & Bony Fishes | Class Osteichthyes |
Level 3: 35%-60%
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Match the organism in Column-I with its excretory structure in Column-II

Column-I

Column-II

(A)

Cockroach

(p)

Nephridia

(B)

Earthworm

(q)

Proboscis gland

(C)

Balanoglossus

(r)

Kidney

(D)

Clarias

(s)

Malpighian tubules

1. (A)(s),(B)(p),(C)(q),(D)(r)

2. (A)(s),(B)(p),(C)(r),(D)(q)

3. (A)(q),(B)(p),(C)(r), (D)(s)

4. (A)(s), (B)(q),(C)(r),(D)(p)

Subtopic:  Phylum Annelida | Phylum Arthropoda | Phylum Hemichordata | Comparative study of Cartilagenous & Bony Fishes |
 89%
Level 1: 80%+
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Which one of the following sets of animals belong to a single taxonomic group?

1. Cuttlefish, jellyfish, silverfish, dogfish, starfish

2. Bat, pigeon, butterfly

3. Monkey, chimpanzee, man

4. Silkworm, tapeworm, earthworm

Subtopic:  Study of Aves & Mammals |
 91%
Level 1: 80%+
Hints

Select the correct statement about class-Aves
 

1. They are warm blooded (homoiothermous) animals and are able to maintain a constant body temperature
2. Respiration occurs through lungs and air sacs connected to lungs for supplement respiration
3. They are oviparous with separate sexes, internal fertilisation and direct development
4. All of the above
Subtopic:  Study of Aves & Mammals |
 92%
Level 1: 80%+
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The animals belonging to all the following groups are exclusively marine except: 

1. Ctenophora
2. Porifera
3. Protochordata
4. Echinodermata
Subtopic:  Phylum Porifera |
 71%
Level 2: 60%+
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A land snail, a clam, and an octopus all share
1. a mantle
2. calcareous shell
3. a radula
4. distinct cephalization

Subtopic:  Phylum Mollusca |
Level 3: 35%-60%
Hints

Which of the following combinations of phylum and description is incorrect?

1. Echinodermata–branch Bilateria, coelom from archenteron
2. Nematoda–roundworms, pseudocoelomate
3. Cnidaria–radial symmetry, polyp and medusa body forms
4. Porifera - gastrovascular cavity, mouth from blastopore
Subtopic:  Phylum Porifera |
 72%
Level 2: 60%+
Hints

Match Column-I with Column-II and choose the correct option

Column-I Column-II
a. A vector of disease (i) Bombyx
b. A gregarious pest (ii) Limulus
c. A living fossil (iii) Locusta
d. An economically important (iv) Culex insect
 
1. a(iii), b(ii), c(i), d(iv)
2. a(i), b(ii), c(iii), d(iv)
3. a(ii), b(iv), c(iii), d(i)
4. a(iv), b(iii), c(ii), d(i)
Subtopic:  Phylum Arthropoda |
 93%
Level 1: 80%+
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Which of the following set of animals belong the phylum hemichordate?

1. Balanoglossus, Saccoglossus

2. Salpa, Doliolum

3. Petromyzon, Myxine

4. Dentalium, Chaetopleura

Subtopic:  Phylum Hemichordata |
 95%
Level 1: 80%+
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