Phylum Chordata
High-Yield Trend
Questions 7 MCQs
Choose the correct statement.
| 1. | All mammals are viviparous |
| 2. | All cyclostomes do not possess jaws and paired fins |
| 3. | All reptiles have a three-chambered heart |
| 4. | All Pisces have gills covered by an operculum |
All vertebrates are chordates but all chordates are not vertebrates, why?
| 1. | Notochord is replaced by a vertebral column in the adults of some chordates. |
| 2. | The ventral hollow nerve cord remains throughout life in some chordates. |
| 3. | All chordates possess a vertebral column. |
| 4. | All chordates possess notochords throughout their lives. |
| Assertion (A): | All vertebrates are chordates but all chordates are not vertebrates. |
| Reason (R): | Notochord is replaced by vertebral column in the adult vertebrates. |
| 1. | (A) is False but (R) is True. |
| 2. | Both (A) and (R) are True and (R) correctly explains (A). |
| 3. | Both (A) and (R) are True and (R) does not correctly explain (A). |
| 4. | (A) is True but (R) is False. |
| A: | Presence of a mid-dorsal, solid and double nerve cord. |
| B: | Presence of closed circulatory system. |
| C: | Presence of paired pharyngeal gill slits |
| D: | Presence of dorsal heart. |
| E: | Triploblastic pseudocoelomate animals. |
| 1. | C, D and E only | 2. | A, C and D only |
| 3. | B and C only | 4. | B, D and E only |
| List-I | List-II | ||
| A. | Pterophyllum | I. | Hag fish |
| B. | Myxine | II. | Saw fish |
| C. | Pristis | III. | Angel fish |
| D. | Exocoetus | IV. | Flying fish |
Choose the correct answer from the options given below:
| 1. | A-III, B-I, C-II, D-IV |
| 2. | A-IV, B-I, C-II, D-III |
| 3. | A-III, B-II, C-I, D-IV |
| 4. | A-II, B-I, C-III, D-IV |
| A. | Pharynx is perforated by gill slits. |
| B. | Notochord is absent. |
| C. | Central nervous system is dorsal. |
| D. | Heart is dorsal if present. |
| E. | Post anal tail is absent. |
Choose the most appropriate answer from the options given below:
| 1. | A, B & D only |
| 2. | B, D & E only |
| 3. | B, C & D only |
| 4. | A & C only |
| Assertion (A): | All vertebrates are chordates but all chordates are not vertebrate. |
| Reason (R): | The members of subphylum vertebrata possess notochord during the embryonic period, the notochord is replaced by a cartilaginous or bony vertebral column in adults. |
| 1. | (A) is True but (R) is False. |
| 2. | (A) is False but (R) is True. |
| 3. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 4. | Both (A) and (R) are True but (R) is not the correct explanation of (A) |
Preparing Phylum Chordata for NEET
Phylum Chordata is a specific sub-topic that frequently appears in the NEET examination. Understanding the underlying principles and practicing targeted questions is key to mastering this concept.
The questions compiled above are previous year questions (PYQs) directly related to Phylum Chordata. Practicing these specific questions helps you understand the difficulty level and the examiner's approach to this topic.
Topic Frequently Asked Questions
Is Phylum Chordata a high-weightage topic?
You can refer to the priority and consistency badges at the top of this page. High priority topics should be thoroughly revised multiple times before the exam.
Should I memorize the solutions?
No, it is highly recommended to understand the core concept and methodology behind each solution rather than memorizing them, as exact questions are rarely repeated, but the concepts definitely are.