- 1(current)
Q. No.The collared flagellated cell shown in the given figure is called as a:
| 1. | Choanocyte and helps sponges in movement of water through their canal system |
| 2. | Choanocyte and helps sponges in reproducing asexually under favourable conditions |
| 3. | Cnidocyte and helps sponges in catching their prey by paralyzing them |
| 4. | Colloblast and helps sponges in sticking to a surface |
Subtopic: Â Phylum Porifera |
 62%
Level 2: 60%+
Hints
Match Column-I with Column-II and choose the correct option:
1. A-ii, B-iii, C-v, D-iv, E-i
2. A-ii, B-v, C-iii, D-iv, E-i
3. A-i, B-iii, C-v, D-iv, E-ii
4. A-i, B-v, C-iii, D-iv, E-ii
| Column-I | Column-II | ||
| A. | Porifera | (i) | Canal system |
| B. | Aschelminthes | (ii) | Water-vascular system |
| C. | Annelida | (iii) | Muscular pharynx |
| D. | Arthropoda | (iv) | Jointed appendages |
| E. | Echinodermata | (v) | Metameres |
1. A-ii, B-iii, C-v, D-iv, E-i
2. A-ii, B-v, C-iii, D-iv, E-i
3. A-i, B-iii, C-v, D-iv, E-ii
4. A-i, B-v, C-iii, D-iv, E-ii
Subtopic: Â Phylum Porifera |Â Phylum Aschelminthes |Â Phylum Annelida |Â Phylum Arthropoda |Â Phylum Echinodermata |
 82%
Level 1: 80%+
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Hints
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The animals belonging to all the following groups are exclusively marine except:
| 1. | Ctenophora | 2. | Porifera |
| 3. | Protochordata | 4. | Echinodermata |
Subtopic: Â Phylum Porifera |
 73%
Level 2: 60%+
Hints
Consider the given statements regarding sponges:
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
| I: | They have a cellular level of organisation |
| II: | Digestion is intracellular |
| III: | Fertilization is external and development is direct |
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
Subtopic: Â Phylum Porifera |
 80%
Level 1: 80%+
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Which collared flagellated cells are characteristically found in sponges?
1. Choanocytes
2. Interstitial cells
3. Gastrodermal cells
4. Nematocytes
1. Choanocytes
2. Interstitial cells
3. Gastrodermal cells
4. Nematocytes
Subtopic: Â Phylum Porifera |
 95%
Level 1: 80%+
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How many of the given statements regarding sponges are correct?
A: Most sponges are asymmetrical.
B: Water exits from a sponge through the osculum.
C: Fertilization is internal in sponges.
D: Sponges acquire food by filtering water.
1. 1
2. 2
3. 3
4. 4
A: Most sponges are asymmetrical.
B: Water exits from a sponge through the osculum.
C: Fertilization is internal in sponges.
D: Sponges acquire food by filtering water.
1. 1
2. 2
3. 3
4. 4
Subtopic: Â Phylum Porifera |
 63%
Level 2: 60%+
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- 1(current)
Q. No.
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