The diagram below shows the body plan of a:

1. Cephalochordate
2. Cyclostome
3. Cartilaginous fish
4. Bony fish

Subtopic:  Comparative study of Cartilagenous & Bony Fishes |
 79%
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A typical reptilian heart is shown by the figure:

1. 2.
3. 4.
Subtopic:  Study of Reptilia |
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The larvae in echinoderms are:

I: Radially symmetrical II: Free swimming
 
1. Only I 2. Only II
3. Both I and II 4. Neither I nor II
Subtopic:  Phylum Echinodermata |
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Consider the given statements regarding sponges:
I: They have a cellular level of organisation
II: Digestion is intracellular
III: Fertilization is external and development is direct
 
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
Subtopic:  Phylum Porifera |
 79%
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Identify the incorrectly matched pair:
1. Radula – Molluscs
2. Malpighian tubules– Insects
3. Choanocytes– Sponges
4. Cnidocytes – Ctenophora
Subtopic:  Phylum Coelenterata | Phylum Ctenophora & Platyhelminthes |
 85%
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In Chordates:
I: Heart is dorsal
II: Central nervous system is ventral
III: A post-anal tail is present 
1. Only I and II are correct
2. Only III is correct
3. Only II is correct
4. Only I and III are correct
Subtopic:  Phylum Chordata |
 81%
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Match each item in Column I with the one in Column II and select the correct match from the codes given:
Column I Column II
A Cephalochordata P Swim bladder
B Cyclostomata Q Notochord – head to tail
C Chondrichthyes R Males bear claspers on pelvic fins
D Osteichthyes S Marine but migrate to freshwater for spawning
Codes:
A B C D
1. S Q P R
2. P Q R S
3. Q S R P
4. R P S Q
Subtopic:  General Introduction: Vertebrates & Agnatha |
 91%
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Which of the following animals is not matched to its correct scientific name?
1. Penguin: Aptenodytes 2. Tortoise: Testudo
3. Platypus: Macropus 4. Angel fish: Pterophyllum
Subtopic:  Study of Aves & Mammals |
 83%
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Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R): 
Assertion (A): Hemichordates are not chordates.
Reason (R): They do not have a notochord.
In the light of the above statements, choose the correct answer from the options given below:
1. Both (A) and (R) are True and (R) is the correct explanation of (A).
2. Both (A) and (R) are True but (R) is not the correct explanation of (A).
3. (A) is True but (R) is False.
4. Both (A) and (R) are False.
Subtopic:  Phylum Hemichordata | Phylum Chordata |
 86%
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Which class of vertebrates bears jaw but does not bear limbs?
1. Cyclostomata 2. Chondrichthyes
3. Amphibia 4. Reptilia
Subtopic:  Comparative study of Cartilagenous & Bony Fishes |
 72%
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