Select Chapter Topics:
Q. No.
Assertion (A):
Cyclostomes are chordates but not vertebrates.
Reason (R):
Cyclostomes lack a vertebral column but have a notochord.
1.
Both (A) and (R) are True and (R) is the correct explanation of (A).
2.
Both (A) and (R) are True but (R) is not the correct explanation of (A).
3.
(A) is True but (R) is False.
4.
(A) is False and (R) is False.
Subtopic: Phylum Chordata |
Level 3: 35%-60%
Please attempt this question first.
Hints
Please attempt this question first.
Consider the given two statements:
| Statement I: | Coelenterates, ctenophores and echinoderms have bilateral symmetry as larvae and radial symmetry as adults. |
| Statement II: | Animals like annelids and arthropods exhibit bilateral symmetry. |
| 1. | Statement I is correct; Statement II is incorrect |
| 2. | Statement I is correct; Statement II is correct |
| 3. | Statement I is incorrect; Statement II is incorrect |
| 4. | Statement I is incorrect; Statement II is correct |
Subtopic: Basis of Classification |
82%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.
How many of the given statements are correct regarding Ctenophores?
1. 1
2. 2
3. 3
4. 4
| I: | commonly known as sea walnuts or comb jellies |
| II: | exclusively marine |
| III: | body bears eight external rows of ciliated comb plates |
| IV: | bioluminescence (the property of a living organism to emit light) is well-marked |
2. 2
3. 3
4. 4
Subtopic: Phylum Ctenophora |
94%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.
A non-glandular skin will be seen in both:
1. Snake and Frog
2. Chameleon and Turtle
3. Frog and Pigeon
4. Crocodile and Tiger
1. Snake and Frog
2. Chameleon and Turtle
3. Frog and Pigeon
4. Crocodile and Tiger
Subtopic: Study of Reptilia |
67%
Level 2: 60%+
Please attempt this question first.
Hints
How many of the given statements are correct?
1. 1
2. 2
3. 3
4. 4
| 1. | Cnidaria and ctenophora are radially symmetrical organisms. |
| 2. | Platyhelminthes are acoelomates. |
| 3. | Aschelminthes are pseudocoelomates. |
| 4. | Annelida are true coelomates. |
2. 2
3. 3
4. 4
Subtopic: Basis of Classification |
88%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.
Hemichordates are not chordates because they lack a true:
1. gill slit
2. dorsal hollow nerve cord
3. notochord
4. post-anal tail
1. gill slit
2. dorsal hollow nerve cord
3. notochord
4. post-anal tail
Subtopic: Phylum Hemichordata |
83%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.
Stinging cells seen in Cnidaria that help them catch their prey and in their defence are called:
| 1. | Cnidoblasts | 2. | Nematocysts |
| 3. | Colloblasts | 4. | Grey cells |
Subtopic: Phylum Coelenterata |
70%
Level 2: 60%+
Please attempt this question first.
Hints
Please attempt this question first.
Name the flagellated cells that line the canals of the sponge:
| 1. | choanocytes | 2. | porocytes |
| 3. | pinacocytes | 4. | colloblasts |
Subtopic: Phylum Porifera |
90%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.
How many of the given features will be correct for echinoderms?
1. 1
2. 2
3. 3
4. 4
| I: | All are marine. |
| II: | The adults are radially symmetrical. |
| III: | An excretory system is absent. |
| IV: | Development is indirect with free-swimming larva. |
2. 2
3. 3
4. 4
Subtopic: Phylum Echinodermata |
74%
Level 2: 60%+
Please attempt this question first.
Hints
Please attempt this question first.
If Arthropoda is the largest phylum of Animalia, which of the following is the second largest phylum of Animalia?
1. Chordata
2. Echinodermata
3. Mollusca
4. Platyhelminthes
1. Chordata
2. Echinodermata
3. Mollusca
4. Platyhelminthes
Subtopic: Phylum Mollusca |
97%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.
Select Chapter Topics:
© 2026 GoodEd Technologies Pvt. Ltd.