Choose the correct option to complete the analogy:
Sawfish: Gill slits are present: : _____: Gill slits are absent.
1. Dogfish
2. Devilfish
3. Stingray
4. Angelfish

Subtopic:  Phylum Chordata |
 57%
From NCERT
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Choose the correct match:
1. Balanoglossus – Stomochord
2. Cucumaria – Water canal system
3. Chaetopleura – Chitinous exoskeleton
4. Octopus – Dorsal hollow nerve cord
Subtopic:  Phylum Hemichordata |
 79%
From NCERT
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Match items in column-I with those in column-II and choose the correct option.
Column-I Column-II
a. Annelids  (i) Triploblastic acoelomate
b. Platyhelminths      (ii) Ciliated comb plates
c.   Aschelminths (iii) Metamerism
d. Ctenophores          (iv) Pseudocoelomates

1. a(i), b(ii), c(iv), d(iii)
2. a(iii), b(i), c(iv), d(ii)
3. a(ii), b(iv), c(i), d(iii)
4. a(iv), b(ii), c(iii), d(i)
Subtopic:  Phylum Ctenophora & Platyhelminthes | Phylum Aschelminthes | Phylum Annelida |
 91%
From NCERT
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How many of the animals given in the box exhibit bilateral symmetry, have true coelom and have a segmented body as well?
Euspongia, Hirudinaria, Meandrina, Chaetopleura, Carcharadon,
Ctenplona, Fasciola, Bombyx, Ancylostoma
1. 2
2. 3
3. 4
4. 5
 
Subtopic:  Basis of Classification |
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Members of Cyclostomata and Chondrichthyes:
1. belong to same Division
2. have a bony endoskeleton
3. have a ventral heart
4. have cartilaginous jaws
 
Subtopic:  Phylum Chordata | Super Class Pisces & its General Characteristics |
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Identify the group where all given animals belong to the same phylum:
1. Apple snail, Devil fish, Tusk shell, Chiton
2. Cattle fish, Angel fish, Dog fish, Saw fish
3. Sea-hare, Sea-cucumber, Sea-urchin, Sea-lily
4. Squid, Silkworm, Hook worm, King crab
 
Subtopic:  Phylum Mollusca |
 62%
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Consider the following characters:
I. Body is covered by scales in all tetrapods.
II. Jaw is present in all vertebrates.
III. All terrestrial vertebrates have at-least a three chambered muscular heart.
1. All are incorrect
2. All are correct
3. Only III is correct
4. Only II is correct
 
Subtopic:  Phylum Chordata | Study of Reptilia |
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Sharks and dogfishes differ from skates and rays by:
 
1. Gill slits are ventrally placed
2. Head and trunk are widened considerably
3. Distinct demarcation between body and tail
4. Their pectorals fins are distinctly marked off from cylindrical bodies

 
Subtopic:  Comparative study of Cartilagenous & Bony Fishes |
 53%
NEET - 2013
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Assertion (A): Syrnix is a characteristic feature of birds.
Reason (R): Syrnix reduces body weight & helps in flights.
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:  Study of Aves & Mammals |
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Assertion (A): Radial symmetry in animals is advantageous in detecting food and danger.
Reason (R): It allows the animal to be able to respond to stimulus from any direction.
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:  Basis of Classification |
 63%
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