Identify the following diagrams and these represents

1. (a) Diploblastic, (b) Triploblastic

2. (a) Triploblastic, (b) Triploblastic

3. (a) Triploblastic, (b) Diploblastic

4. (a) Diploblastic, (b) Diploblastic

Subtopic:  Basis of Classification:I |
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Canal system in sponges helps in

1. Food gathering

2. Respiratory exchange

3. Removal of waste

4. All of the above

Subtopic:  Phylum Porifera |
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Find the incorrect match

1.Sycon-Scypha

2.Spongilla-Fresh water sponge

3.Euspongia- Bath sponge

4.Sycon- Bath sponge

Subtopic:  Phylum Porifera |
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Which one of the following is incorrect about Porifera?

1.Presence of spongin fibres

2.Cellular level of organisation

3.Presence of mouth and digestive cavity

4.Pores all over the body

Subtopic:  Phylum Porifera |
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All the following are present in sponges, except
1. Spicules
2. Choanocytes
3. A digestive tract
4. Sexual and / or asexual reproduction

Subtopic:  Phylum Porifera |
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Collar cells are present in the members of which phyla

1. Echinodermata

2. Coelenterata

3. Ctenophora

4. Porifera

Subtopic:  Phylum Porifera |
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In case of poriferans, the spongocoel is lined with flagellated cells called

1. ostia

2. oscula

3. choanocytes

4. mesenchymal cells

Subtopic:  Phylum Porifera |
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The mode of reproduction in sponges is

1.Sexual

2.Asexual

3.Both 1 and 2

4.None of these

Subtopic:  Phylum Porifera |
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The minute pores in the  body wall of the sponges is known as

1.spongocoel

2.Ostia

3.Osculum

4.Spicules

Subtopic:  Phylum Porifera |
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Water canal is lined by

1. Spongin fibres

2. Choanocytes

3. Collar cells

4. Both 2 and 3

Subtopic:  Phylum Porifera |
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