Q. No.
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One example of animals having a single opening to the outside that serves both as mouth as well as the anus is:
1. Octopus
2. Asterias
3. Ascidia
4. Fasciola
Subtopic: Â Phylum Ctenophora |
 74%
Level 2: 60%+
AIPMT - 2010
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The figure shows four animals (a), (b), (c) and (d). Select the correct answer with respect to a common characteristic of two of these animals:
| (a) |  |
(b) |  |
| (c) |  |
(d) |  |
1. (c) and (d) have a true coelom
2. (a) and (d) respire mainly through body wall
3. (b) and (c) show radial symmetry
4. (a) and (b) have cnidoblasts for self-defence
Subtopic: Â Phylum Coelenterata |Â Phylum Ctenophora |Â Phylum Arthropoda |Â Phylum Mollusca |
 78%
Level 2: 60%+
AIPMT - 2011
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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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Read the following statements.
| (a) | Metagenesis is observed in Helminths. |
| (b) | Echinoderms are triploblastic and coelomate animals. |
| (c) | Round worms have organ-system level of body organization. |
| (d) | Comb plates present in ctenophores help in digestion. |
| (e) | Water vascular system is characteristic of Echinoderms. |
Choose the correct answer from the options given below:
1. (a), (d) and (e) are correct
2. (b), (c) and (e) are correct
3. (c), (d) and (e) are correct
4. (a), (b) and (c) are correct
Subtopic: Â Phylum Coelenterata |Â Phylum Ctenophora |Â Phylum Aschelminthes |Â Phylum Echinodermata |
 80%
Level 1: 80%+
NEET - 2021
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Biradial symmetry and lack of cnidoblasts are the characteristics of:
1. Starfish and sea anemone
2. Ctenoplana and Beroe
3. Aurelia and Paramecium
4. Hydra and starfish
Subtopic: Â Phylum Ctenophora |
 54%
Level 3: 35%-60%
AIPMT - 2006
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Which one of the following kinds of animals are triploblastic?
1. Flatworms
2. Sponges
3. Ctenophores
4. Corals
Subtopic: Â Phylum Ctenophora |
 85%
Level 1: 80%+
AIPMT - 2010
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Match List I with List II:
Choose the correct answer from the options given below:
1. A-II, B-I, C-IV, D-III
2. A-II, B-IV, C-I, D-III
3. A-IV, B-III, C-II, D-I
4. A-IV, B-II, C-III, D-I
| List I | List II | ||
| A. | Pleurobrachia | I. | Mollusca |
| B. | Radula | II. | Ctenophora |
| C. | Stomochord | III. | Osteichthyes |
| D. | Air bladder | IV. | Hemichordata |
Choose the correct answer from the options given below:
1. A-II, B-I, C-IV, D-III
2. A-II, B-IV, C-I, D-III
3. A-IV, B-III, C-II, D-I
4. A-IV, B-II, C-III, D-I
Subtopic: Â Phylum Ctenophora |Â Phylum Mollusca |Â Phylum Hemichordata |Â Phylum Chordata |
 85%
Level 1: 80%+
NEET - 2024
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Given below is a list of some sexually reproducing animals. Select the hermaphrodite animals from the list.
Choose the correct answer from the options given below:
| A. | Cockroach | B. | Leech |
| C. | Housefly | D. | Tapeworm |
| E. | Earthworm | ||
| 1. | A, B and D only | 2. | C and D only |
| 3. | B, D and E only | 4. | A, C and E only |
Subtopic: Â Phylum Ctenophora |Â Phylum Annelida |Â Phylum Platyhelminthes |
 76%
Level 2: 60%+
NEET - 2024
Sorry!! currently, the explanation for the question is not provided. If you need further help, please email at support@neetprep.com with subject: Explanation Missing for Question Id: 456875
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Sorry!! currently, the explanation for the question is not provided. If you need further help, please email at support@neetprep.com with subject: Explanation Missing for Question Id: 456875
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Match List I with List II.
Choose the correct answer from the options given below:
| List I | List II | ||
| A. | Taenia | I. | Nephridia |
| B. | Paramoecium | II. | Contractile vacuole |
| C. | Periplaneta | III. | Flame cells |
| D. | Pheretima | IV. | Urecose gland |
| Options: | A | B | C | D |
| 1. | II | I | IV | III |
| 2. | I | II | III | IV |
| 3. | I | II | IV | III |
| 4. | III | II | IV | I |
Subtopic: Â Phylum Coelenterata |Â Phylum Ctenophora |Â Phylum Annelida |Â Phylum Arthropoda |
 83%
Level 1: 80%+
NEET - 2023
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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
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