- 1(current)
Q. No.Identify the incorrectly matched pair:
| 1. | Obelia | Metagenesis |
| 2. | Planaria | Free living with high regeneration capacity |
| 3. | Ancylostoma | Acoelomate |
| 4. | Nereis | Parapodia |
Subtopic: Â Phylum Coelenterata |Â Phylum Ctenophora |Â Phylum Aschelminthes |Â Phylum Annelida |
 85%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
What is a critical difference between Cnidaria and Ctenophora?
| 1. | Cnidarians are diploblastic, ctenophores are triploblastic. |
| 2. | Cnidarians are bilaterally symmetrical, ctenophores are radially symmetrical. |
| 3. | Cnidarians have a gastrovascular cavity, ctenophores do not. |
| 4. | Cnidarians possess cnidocytes, while ctenophores do not. |
Subtopic: Â Phylum Coelenterata |Â Phylum Ctenophora |
 80%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
The salient features of Ctenophora include:
| 1. | Radial symmetry and presence of a water vascular system |
| 2. | Bilateral symmetry and absence of nematocysts |
| 3. | Radial symmetry and bioluminescence |
| 4. | Bilateral symmetry and presence of a coelom |
Subtopic: Â Phylum Ctenophora |
 96%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
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%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Identify the incorrect statement:
| 1. | Mesoglea is present in between ectoderm and endoderm in Obelia. |
| 2. | Asterias exhibits radial symmetry as an adult |
| 3. | Fasciola is a pseudocoelomate animal |
| 4. | Taenia is a triploblastic animal |
Subtopic: Â Phylum Ctenophora |Â Phylum Platyhelminthes |
 74%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Choose the correct match showing level of organisation (given in Column I) with examples of the animal (given in Column II):
1. i-B, ii-C, iii-D, and iv-A
2. i-B, ii-D, iii-C, and iv-A
3. i-D, ii-A, iii-B, and iv-C
4. i-A, ii-D, iii-C, and iv-B
| Column I | Column II | ||
| A | Organ level | (i) | Pheretima |
| B | Cellular aggregate | (ii) | Fasciola |
| C | Tissue level | (iii) | Spongilla |
| D | Organ system level | (iv) | Obelia |
1. i-B, ii-C, iii-D, and iv-A
2. i-B, ii-D, iii-C, and iv-A
3. i-D, ii-A, iii-B, and iv-C
4. i-A, ii-D, iii-C, and iv-B
Subtopic: Â Phylum Porifera |Â Phylum Coelenterata |Â Phylum Ctenophora |Â Phylum Annelida |Â Basis of Classification |
 92%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Consider the given statements:
| Statement I: | Arthropoda is the largest phylum of Animalia. |
| Statement II: | Mollusca is the second largest animal phylum. |
| Statement III: | Ctenophora is the third largest animal phylum. |
| 1. | Statement I is correct; Statement II is correct; Statement III is incorrect |
| 2. | Statement I is correct; Statement II is correct; Statement III is correct |
| 3. | Statement I is correct; Statement II is incorrect; Statement III is incorrect |
| 4. | Statement I is incorrect; Statement II is correct; Statement III is incorrect |
Subtopic: Â Phylum Ctenophora |Â Phylum Arthropoda |Â Phylum Mollusca |
 84%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
- 1(current)
Q. No.
© 2025 GoodEd Technologies Pvt. Ltd.