All members of Kingdom Animalia:
1. have tissues like nerve and muscle.
2. reproduce exclusively by sexual method.
3. are multicellular.
4. exhibit same pattern of organization of cells.
Subtopic:  Basis of Classification |
 81%
From NCERT
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Consider the given two statements:
Statement I: Sponges exhibit a cellular level of organization.
Statement II: Cnidarians have a tissue level of organization.
In light of the above statements, choose the most appropriate answer from the options given below:
1. Statement I is correct but Statement II is incorrect.
2. Both Statement I and Statement II are correct.
3. Both Statement I and Statement II are incorrect.
4. Statement I is incorrect but Statement II is correct.
Subtopic:  Phylum Porifera |
 90%
From NCERT
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A complete digestive system is present in the members of all the following phyla of Animal Kingdom except:
I: Platyhelminthes
II: Mollusca
III: Annelida
 
1. Only I 2. Only II
3. Only II and III 4. I, II, and III
Subtopic:  Basis of Classification |
 75%
From NCERT
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The type of circulatory system, in which blood is circulated through a series of vessels [arteries, veins and capillaries] and never leaves the network of blood vessels, is called as:
1. An open circulatory system 2. A closed circulatory system
3. A lymphatic system 4. A portal circulation
Subtopic:  Basis of Classification |
 93%
From NCERT
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Flatworms will exhibit all the following except:
1. Bilateral symmetry 2. Three embryonic layers
3. Incomplete digestive system 4. Coelom
Subtopic:  Phylum Ctenophora & Platyhelminthes |
 78%
From NCERT
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The triploblastic animals differ from the diploblastic animals in having:
1. Ectoderm 2. Mesoderm
3. Endoderm 4. Gastroderm
Subtopic:  Basis of Classification |
 94%
From NCERT
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Regarding bilateral symmetry:
I: Bilateral symmetry is the body plan where the body of the animal can be divided into two identical halves through any plane passing through the central axis of the body.
II: While Ctenophores and adult Echinoderms have bilateral symmetry, Annelida and Arthropods have radial symmetry.
In light of the above statements, choose the most appropriate answer from the options given below:
1. Statement I is correct but Statement II is incorrect.
2. Both Statement I and Statement II are correct.
3. Both Statement I and Statement II are incorrect.
4. Statement I is incorrect but Statement II is correct.
Subtopic:  Basis of Classification |
 65%
From NCERT
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What would be true for an animal that exhibits the kind of body symmetry shown in the given diagram?
I: This is seen in sponges, cnidarians, ctenophores and larval echinoderms.
II: This type of body symmetry is generally seen in animals which move actively in their environment.
 
1. Only I 2. Only II
3. Both I and II 4. Neither I nor II
Subtopic:  Basis of Classification |
 54%
From NCERT
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Consider the given features:

A: Body cavity lined by mesoderm 
B: The mesoderm present as scattered pouches in between the ectoderm and the endoderm

Select the correct option of animals having the features A and B:

A B
1. Aschelminthes Annelids
2. Platyhelminthes Ctenophores
3. Arthropods Molluscs
4. Arthropods Aschelminthes
Subtopic:  Basis of Classification |
 83%
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In metameric segmentation:
I: The body is divided into segments only externally.
II: There is a serial repetition of at least some organs.
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic:  Basis of Classification |
 69%
From NCERT
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