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Q. No.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: Phylum Hemichordata | General Introduction: Vertebrates & Agnatha | Class Cyclostomata |
82%
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Lampreys:
| 1. | May or may not possess jaw |
| 2. | Is included in the division Agnatha where notochord is present only in the early stages |
| 3. | Possess an elongated body with gill slits for respiration |
| 4. | Are devoid of scales and possess paired fins |
Subtopic: General Introduction: Vertebrates & Agnatha | Class Cyclostomata |
51%
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What is/are the advantage(s) of coelom?
1. Can absorb shock or provide a hydrostatic skeletal system
2. Less freedom for movement
3. Allows organ to expand
4. Both (1) and (3)
1. Can absorb shock or provide a hydrostatic skeletal system
2. Less freedom for movement
3. Allows organ to expand
4. Both (1) and (3)
Subtopic: Basis of Classification:I | Basis of Classification:II | Basis of Classification |
89%
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Read the following statements:
How many of the above statements are incorrect?
1. One
2. Three
3. Two
4. Four
| i. | Snakes lack urinary bladder |
| ii. | Air sacs in birds are helpful to lessen the body weight, keep the body warm, regulate body temperature and help in blood circulation |
| iii. | Bone marrow is abundantly present in birds |
| iv. | Devil fish belongs to the phylum Mollusca |
| v. | Sea urchin has mouth on lower side and anus on the upper side |
How many of the above statements are incorrect?
1. One
2. Three
3. Two
4. Four
Subtopic: Phylum Arthropoda | Study of Aves & Mammals |
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Which of the following groups of three animals, each is correctly matched with their one characteristic morphological feature:
| Animals | Morphological features | |
| (a) | Scorpion, spider, cockroach | Ventral solid nerve cord |
| (b) | Centipede, prawn, sea-urchin | Joined appendages |
| (c) | Cockroach, Locust, Taenia | Metameric segmentation |
| (d) | Liver fluke, sea-anemone, sea-cucmber | Bilateral symmetry |
Subtopic: Phylum Arthropoda | Phylum Mollusca | Phylum Echinodermata |
66%
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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: Phylum Annelida | Phylum Arthropoda | Phylum Mollusca | Phylum Echinodermata | Phylum Hemichordata | Phylum Chordata |
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Read the following statements for the first triploblastic animals (w.r.t. evolution)
i. Possess coelom
ii. Are acoelomate
iii Are pseudocoelomate
iv. Possess protonephridia
v. Cephalisation begins
vi. Is exemplified by Planaria
Which of the following statements corresponds to these animals?
1. i, ii, iii
2. i, ii, iii, iv, v, vi
3. ii, iv, v, vi
4. i and iii
i. Possess coelom
ii. Are acoelomate
iii Are pseudocoelomate
iv. Possess protonephridia
v. Cephalisation begins
vi. Is exemplified by Planaria
Which of the following statements corresponds to these animals?
1. i, ii, iii
2. i, ii, iii, iv, v, vi
3. ii, iv, v, vi
4. i and iii
Subtopic: Basis of Classification:I | Basis of Classification:II | Basis of Classification |
80%
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Assertion (A): Coelenterates have a tissue level of organization.
Reason (R): Cells performing the same function are arranged in tissues.
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, but (R) is true.
Reason (R): Cells performing the same function are arranged in tissues.
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, but (R) is true.
Subtopic: Phylum Coelenterata |
73%
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Assertion (A): The digestive system of Aschelminthes is incomplete.
Reason (R): The incomplete digestive system has only a single opening to the outside of the body that serves as both mouth and anus.
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, but (R) is true.
Reason (R): The incomplete digestive system has only a single opening to the outside of the body that serves as both mouth and anus.
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, but (R) is true.
Subtopic: Phylum Aschelminthes |
73%
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Assertion (A): Platyhelminthes are also known as Flatworms.
Reason (R): Platyhelminthes have a dorsolaterally flattened body.
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, but (R) is true.
Reason (R): Platyhelminthes have a dorsolaterally flattened body.
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, but (R) is true.
Subtopic: Phylum Platyhelminthes |
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