The given diagram is of

1.Cnidoblast

2.Cnidocytes

3.Choanocytes

4.Both 1 and 2

Subtopic:  Phylum Coelenterata |
 77%
From NCERT
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Which of the following  not started from Cnidarians?

1.Tissue level of Organisation

2.Radial symmetry

3.Diploblastic body plan

4.Presence of mesoderm

Subtopic:  Phylum Coelenterata |
 81%
From NCERT
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In which of the following form metamerism is present

1.Obelia

2.Hydra

3.Sea anemone

4.None of the above

Subtopic:  Phylum Coelenterata |
 61%
From NCERT
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Which of the following germinal layer is absent in Cnidarians

1.Ectoderm

2.Endoderm

3.Mesoderm

4.Both 2 and 3

Subtopic:  Phylum Coelenterata |
 92%
From NCERT
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Ctenophores are commonly known as

1.Sea walnuts

2.Comb jellies

3.Cnidarians

4.Both 1 and 2

Subtopic:  Phylum Ctenophora & Platyhelminthes |
 91%
From NCERT
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Which of the following attribute is false about Ctenophores

1.Radial symmetry

2.Diploblastic

3.All germ layers are present

4.Tissue level of Organisation

Subtopic:  Phylum Ctenophora & Platyhelminthes |
 95%
From NCERT
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Which of the following is well marked in Ctenophores?

1.Comb plates

2.Tentacles

3.Bioluminiscence

4.Diploblastic body plan

Subtopic:  Phylum Ctenophora & Platyhelminthes |
 75%
From NCERT
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Which of the following is true about digestion of Ctenophores?

1.Extracellular digestion

2.Intracellular digestion

3.Both 1 and 2

4.Neither Intracellular nor Extracellular

Subtopic:  Phylum Ctenophora & Platyhelminthes |
 86%
From NCERT
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Which of the following is true about Ctenophores?

1.Reproduction takes place by sexual means only

2.Fertilisation is external

3.Indirect development

4.All of these

Subtopic:  Phylum Ctenophora & Platyhelminthes |
 94%
From NCERT
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Pleurobrachia is

1.Hermaphrodite

2.Dioecious

3.Bisexual

4.Both 1 and 3

Subtopic:  Phylum Ctenophora & Platyhelminthes |
 84%
From NCERT
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