Match each item in Column I with one in Column II and select the best match from the codes given:
COLUMN I COLUMN II
A Comb plates P Cnidaria
B Metagenesis Q Mollusca
C Canal system R Sponges
D Radula S Ctenophora
Codes:
A B C D
1. S P R Q
2. P S R Q
3. P S Q R
4. S P Q R

Subtopic:  Phylum Porifera | Phylum Coelenterata | Phylum Ctenophora & Platyhelminthes | Phylum Mollusca |
 88%
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Identify the incorrect statement:
1. Notochord is derived from embryonic mesoderm
2. Stomochord in hemochordates is actually notochord
3. Chordates have a post-anal tail
4. Pharynx is perforated by gill slits in chordates
Subtopic:  Phylum Hemichordata |
 74%
From NCERT
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What is the number of animals, amongst the animals given below, that have both a four-chambered heart and endothermy?

Crocodilus, Aptendytes, Canis, Calotes, Struthio, Delphinus, Testudo, Ichthyophis

1. 3 2. 4
3. 5 4. 6
Subtopic:  Phylum Chordata | Study of Reptilia | Study of Aves & Mammals |
From NCERT
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Match each item in Column I with one in Column II and select the correct match from the codes given:
COLUMN I COLUMN II
A. Petromyzon P A jawless vertebrate
B. Icthyophis Q A limbless amphibian
C. Struthio R A flightless bird

Codes
A B C
1. Q R P
2. Q P R
3. P Q R
4. P R Q
Subtopic:  Phylum Chordata | Comparative study of Cartilagenous & Bony Fishes | Study of Amphibians | Study of Aves & Mammals |
 88%
From NCERT
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Identify the incorrectly matched pair:
1. Obelia Metagenesis
2. Planaria Free living with
high regeneration capacity
3. Ancylostoma Acoelomate
4. Nereis Parapodia
Subtopic:  Phylum Coelenterata | Phylum Ctenophora & Platyhelminthes | Phylum Aschelminthes | Phylum Annelida |
 84%
From NCERT
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Match each item in Column I with one in Column II and choose the correct option from the codes given below:
Column I Column II
A. Porifera P Metagenesis
B. Cnidaria Q Flame cells
C. Ctenophora R Comb Plates
D. Platyhelminthes S Choanocyte
 
A B C D
1. Q S P
2. P R Q
3. S Q R
4. R P S
Subtopic:  Phylum Porifera | Phylum Coelenterata | Phylum Ctenophora & Platyhelminthes |
 93%
From NCERT
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Identify the incorrectly matched pair:
1. Echinodermata Water vascular system
2. Hemichordata Stomochord
3. Cyclostomata Cartilaginous jaw
4. Cephalochordata Notochord persistent throughout life
Subtopic:  General Introduction: Vertebrates & Agnatha |
 81%
From NCERT
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Identify the incorrect statement:
1. Metamerism appeared for the first time in annelida
2. Arthropods have jointed appendages and chitinous exoskeleton
3. Reptiles are endotherms
4. Forelimbs of birds are modifies into wings
Subtopic:  Study of Reptilia |
 72%
From NCERT
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Which of the following animals has three chambered heart?
1. Scoliodon 2. Hippocampus
3. Chelone 4. Pteropus
Subtopic:  Study of Reptilia |
 76%
From NCERT
NEET - 2022

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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%
From NCERT
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