- 1(current)
Q. No.Select the correct statements:
Choose the correct answer from the options given below:
| A: | Platyhelminthes are triploblastic, pseudocoelomate and bilaterally symmetrical organisms. |
| B: | Ctenophores reproduce only sexually and fertilization is external. |
| C: | In tapeworm, fertilization is internal but sexes are not separate. |
| D: | Ctenophores are exclusively marine, diploblastic and bioluminescent organisms. |
| E: | In sponges, fertilization is external and development is direct. |
Choose the correct answer from the options given below:
| 1. | (A), (C) and (D) only | 2. | (B), (C) and (D) only |
| 3. | (A) and (E) only | 4. | (B) and (D) only |
Subtopic: Â Phylum Porifera |Â Phylum Coelenterata |Â Phylum Ctenophora |Â Phylum Platyhelminthes |
 67%
Level 2: 60%+
NEET - 2023
Hints
Match List - I with List - II
| List-I | List-II |
| (a) Metamerism | (i) Coelenterata |
| (b) Canal system | (ii) Ctenophora |
| (c) Comb Plates | (iii) Annelida |
| (d) Cnidoblasts | (iv) Porifera |
Choose the correct answer from the options given below:
| Options: | (a) | (b) | (c) | (d) |
| 1. | iii | iv | ii | i |
| 2. | iv | i | ii | iii |
| 3. | iv | iii | i | ii |
| 4. | iii | iv | i | ii |
Subtopic: Â Phylum Porifera |Â Phylum Coelenterata |Â Phylum Ctenophora |Â Phylum Annelida |
 84%
Level 1: 80%+
NEET - 2021
Hints
Match List - I with List - II
Choose the correct answer from the options given below:
| List-I | List-II | ||
| (A) | Contractile vacuole | (I) | Asterias |
| (B) | Water vascular system | (II) | Amoeba |
| (C) | Canal system | (III) | Spongilla |
| (D) | Flame cells | (IV) | Taenia |
Choose the correct answer from the options given below:
| Options: | (A) | (B) | (C) | (D) |
| 1. | (IV) | (II) | (I) | (III) |
| 2. | (I) | (III) | (II) | (IV) |
| 3. | (III) | (II) | (I) | (IV) |
| 4. | (II) | (I) | (III) | (IV) |
Subtopic: Â Phylum Porifera |Â Phylum Ctenophora |Â Phylum Echinodermata |
 86%
Level 1: 80%+
NEET - 2023
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In the case of Poriferans, the spongocoel is lined with flagellated cells called:
1. Oscula
2. Choanocytes
3. Mesenchymal cells
4. Ostia
Subtopic: Â Phylum Porifera |
 89%
Level 1: 80%+
NEET - 2017
Hints
How many of the given statements regarding members of Porifera are correct?
1. 2
2. 3
3. 4
4. 5
| I: | They are exclusively marine. |
| II: | They have cellular level of organisation. |
| III: | They have a water vascular system with tube feet. |
| IV: | Digestion is intracellular. |
| V: | Fertilisation is external and development is direct. |
2. 3
3. 4
4. 5
Subtopic: Â Phylum Porifera |
 59%
Level 3: 35%-60%
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Choanocyte is a collared flagellated cell found in sponges. The collar of this cell is made of:
| 1. | microvilli | 2. | fibrils |
| 3. | tentacles | 4. | canals |
Subtopic: Â Phylum Porifera |
Level 4: Below 35%
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Animals can be categorised on the basis of their symmetry. Which of the following statements are correct?
1. Only I and II
2. Only I and III
3. Only II and III
4. I, II and III
| I: | Sponges are mostly asymmetrical. |
| II: | Coelenterates, ctenophores and adult echinoderms have radial symmetry. |
| III: | Annelids and arthropods exhibit bilateral symmetry. |
1. Only I and II
2. Only I and III
3. Only II and III
4. I, II and III
Subtopic: Â Phylum Porifera |Â Phylum Coelenterata |Â Phylum Ctenophora |Â Phylum Annelida |Â Phylum Arthropoda |Â Basis of Classification |
 90%
Level 1: 80%+
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- 1(current)
Q. No.
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