Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R.
Assertion (A): Members of subphylum vertebrate possess notochord during the embryonic period. The notochord is replaced by a cartilaginous or bony vertebral column in the adult.
Reason (R): All chordates are vertebrates but not all vertebrates are chordates
In the light of the above statements, choose the correct answer from the options given below:
1.  (A) is True but (R) is False
2.  (A) is False but (R) is True
3.  Both (A) and (R) are True and (R) is the correct explanation of (A).
4.  Both (A) and (R) are True but (R) is not the correct explanation of (A).

Subtopic:  Phylum Chordata |
 66%
Level 2: 60%+
NEET - 2024
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Which of the following pairs is an incorrect match?
1. Annelids and arthropods - Bilateral symmetry
2. Sponges - Acoelomates
3. Coelenterates and Ctenophores - Radial symmetry
4. Platyhelminthes - Diploblastic organisation
Subtopic:  Phylum Platyhelminthes |
 80%
Level 1: 80%+
NEET - 2024
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Open Circulatory system is present in:
1. Palaemon, Nereis, Balanoglossus
2. Hirudinaria, Bombyx, Salpa
3. Anopheles, Limax, Limulus
4. Pheretima, Musca, Pila
Subtopic:  Phylum Arthropoda |
 65%
Level 2: 60%+
NEET - 2024
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Match List-I with List-II:
List-I List-II
A. Chondrichthyes I. Clarias
B. Cyclostomata II. Carcharodon
C. Osteichthyes III. Myxine
D. Amphibia IV. Ichthyophis

Choose the correct answer from the options given below:
1. A-II,B-IV,C-I,D-III
2. A-I,B-III,C-II,D-IV
3. A-II,B-III,C-I,D-IV
4. A-I,B-II,C-III,D-IV
Subtopic:  Phylum Chordata | Comparative study of Cartilagenous & Bony Fishes | Study of Amphibians | Class Chondrichthyes |
 77%
Level 2: 60%+
NEET - 2024
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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): In hemichordates, the body cavity is lined by mesoderm.
Reason (R): In aschelminthes, the body cavity is not lined by mesoderm
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. (A) is False but (R) is True.
Subtopic:  Basis of Classification |
 65%
Level 2: 60%+
NEET - 2024
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Given below is a list of some sexually reproducing animals. Select the hermaphrodite animals from the list. 
A. Cockroach  B. Leech 
C. Housefly D. Tapeworm
E. Earthworm 
Choose the correct answer from the options given below:
1. A, B and D only 2. C and D only 
3. B, D and E only  4. A, C and E only
Subtopic:  Phylum Ctenophora | Phylum Annelida | Phylum Platyhelminthes |
 74%
Level 2: 60%+
NEET - 2024
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Match List-I with List-II:
List-I
(Biological Name)
List-II
(Common name)
A. Asterias I. Sea urchin
B.  Antedon II. Brittle star 
C. Echinus III.  Sea lily
D. Ophiura  IV. Star fish 

Choose the correct answer from the options given below: 
 
1. A-III, B-IV, C-II, D-I
2. A-IV, B-III, C-I, D-II
3. A-II, B-III, C-I, D-IV
4. A-I, B-II, C-IV, D-III
Subtopic:  Phylum Echinodermata |
 88%
Level 1: 80%+
NEET - 2024
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Which of the following group of animals have three chambered heart? 
1. Bufo, Alligator, Struthio
2. Chameleon, Hyla, Calotes
3. Crocodilus, pavo, Clarias
4. Exocoetus, Hemidactylus, Rana 
Subtopic:  Study of Amphibians | Study of Reptilia |
 67%
Level 2: 60%+
NEET - 2024
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The following are the statements about non-chordates: 
A. Pharynx is perforated by gill slits.
B. Notochord is absent. 
C. Central nervous system is dorsal. 
D. Heart is dorsal if present. 
E. Post anal tail is absent. 

Choose the most appropriate answer from the options given below: 
1. A, B & D only
2. B, D & E only
3. B, C & D only
4. A & C only
Subtopic:  Phylum Chordata |
 68%
Level 2: 60%+
NEET - 2024
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Consider the following statements:
A. Annelids are true coelomates
B. Poriferans are pseudocoelomates
C. Aschelminthes are acoelomates
D. Platyhelminthes are pseudocoelomates
Choose the correct answer from the options given below:
1. A only 2. C only
3. D only 4. B only
Subtopic:  Phylum Annelida |
 83%
Level 1: 80%+
NEET - 2024
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