Tunicates are included in which sub-phylum of Chordata?
1. Urochordata 2. Cephalochordata
3. Cyclostomata 4. Hemichordata

Subtopic:  Phylum Chordata |
 78%
From NCERT
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A primary characteristic feature of annelids will be:
1. Exoskeleton
2. Jointed appendages
3. Metameric Segmentation
4. Radula
Subtopic:  Phylum Annelida |
 90%
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Which of the following feature of reptiles sets them apart from amphibians?
1. Three-chambered heart
2. Epidermal Scales or scutes
3. Gills
4. Metamorphosis
Subtopic:  Study of Reptilia |
 79%
From NCERT
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The body wall shown in the given figure will be seen in the members of:

1. Platyhelminthes
2. Coelenterates
3. Aschelminthes
4. Annelids
Subtopic:  Basis of Classification |
From NCERT
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The ragworm, Nereis, is a/an:
1. Flatworm 2. Roundworm
3. Annelid 4. Mollusc
Subtopic:  Phylum Annelida |
 83%
From NCERT
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Consider the given two statements:
Assertion (A): Flatworms have a dorso-ventrally flattened body.
Reason (R): They are mostly endoparasites.
 
1. Both (A) and (R) are True and (R) correctly explains (A).
2. Both (A) and (R) are True but (R) does not correctly explain (A).
3. (A) is True; (R) is False
4. Both (A) and (R) are False
Subtopic:  Phylum Ctenophora & Platyhelminthes |
 78%
From NCERT
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Consider the given two statements:
Assertion(A): It is important that amphibian skin is without scales and is kept moist.
Reason (R): Amphibians respire through skin.
 
1. Both (A) and (R) are True and (R) correctly explains (A).
2. Both (A) and (R) are True but (R) does not correctly explain (A).
3. (A) is True; (R) is False
4. Both (A) and (R) are False
Subtopic:  Study of Amphibians |
 82%
From NCERT
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Consider the given two statements:
Assertion(A): All chordates are not vertebrates.
Reason (R): All chordates do not have a notochord at any stage of their development.
 
1. Both (A) and (R) are True and (R) correctly explains (A)
2. Both (A) and (R) are True but (R) does not correctly explain (A).
3. (A) is True; (R) is False
4. Both (A) and (R) are False
Subtopic:  Phylum Chordata |
 68%
From NCERT
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Name the flagellated cells that line the canals of the sponge:
1. choanocytes 2. porocytes
3. pinacocytes 4. colloblasts
Subtopic:  Phylum Porifera |
 84%
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Stinging cells seen in Cnidaria that help them catch their prey and in their defence are called:
1. Cnidoblasts 2. Nematocysts
3. Colloblasts 4. Grey cells
Subtopic:  Phylum Coelenterata |
 72%
From NCERT
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