- 1(current)
Q. No.Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R):
In the light of the above statements, choose the correct answer from the options given below:
| Assertion (A): | Hemichordates are not chordates. |
| Reason (R): | They do not 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. | Both (A) and (R) are False. |
Subtopic: Â Phylum Hemichordata |Â Phylum Chordata |
 86%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.
Match column-I with column-II and choose the correct option.
| Column I | Column II | ||
| a. | Asterias | (i) | Notochord in larval tail |
| b. | Balanoglossus | (ii) | Spiny body |
| c. | Ascidia | (iii) | Cloaca present |
| d. | Hyla | (iv) | Worm-like marine animal |
| a | b | c | d | |
| 1. | (i) | (ii) | (iii) | (iv) |
| 2. | (iv) | (ii) | (iii) | (i) |
| 3. | (ii) | (iii) | (iv) | (i) |
| 4. | (ii) | (iv) | (i) | (iii) |
Subtopic: Â Phylum Echinodermata |Â Phylum Hemichordata |Â Phylum Chordata |Â Study of Amphibians |
 90%
Level 1: 80%+
Hints
Consider the given two statements:
| Assertion (A): | Balanoglossus possess external fertilization. |
| Reason(R): | Saccoglossus undergo direct development during their life cycle. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A) |
| 2. | Both (A) and (R) are True and (R) does not correctly explain (A) |
| 3. | (A) is True, (R) is False |
| 4. | (A) is False, (R) is False |
Subtopic: Â Phylum Hemichordata |
 67%
Level 2: 60%+
Hints
Choose the correct match:
| 1. | Branchostoma : Notochord persist through out the life |
| 2. | Ascidia : Notochord present in larva and disappears in adult |
| 3. | Doliolum : Notochord present in the larval tail only |
| 4. | More than one option is correct |
Subtopic: Â Phylum Hemichordata |Â General Introduction: Vertebrates & Agnatha |Â Class Cyclostomata |
 82%
Level 1: 80%+
Hints
Column-I contain larval stages and column-II contain the groups to which they belong. Match them correctly and choose the right option"
1. A = vi, B = iv, C = i, D = v, E = ii
2. A = ii, B = v, C = i, D = iv, E = vi
3. A = v, B = iv, C = iii, D = ii, E = i
4. A = iv, B = iii, C = ii, D = i, E = v
| Column-I | Column-II | ||
| A. | Planula | i. | Annelida |
| B. | Tornaria | II. | Mollusca |
| C. | Trochophore | iii. | Arthropoda |
| D. | Bipinnaria | iv. | Hemichordata |
| E. | Glochidium | v. | Echinodermata |
| vi. | Coelenterata |
2. A = ii, B = v, C = i, D = iv, E = vi
3. A = v, B = iv, C = iii, D = ii, E = i
4. A = iv, B = iii, C = ii, D = i, E = v
Subtopic: Â Phylum Annelida |Â Phylum Arthropoda |Â Phylum Mollusca |Â Phylum Echinodermata |Â Phylum Hemichordata |Â Phylum Chordata |
Level 3: 35%-60%
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- 1(current)
Q. No.
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