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Q. No.Read the following statements.
a.
Metagenesis is observed in all coelenterates.
b.
Echinoderms are exclusively marine, triploblastic, and monoecious animals.
c.
Roundworms are coelomates with complete digestive tract.
d.
Comb plates present in ctenophores help in locomotion.
e.
Water canal system is a characteristic of sponges.
Choose the correct answer from the options given below.
1. (a), (b), (c) are correct
2. (b), (c), (d) are correct
3. (c), (d), (e) are correct
4. (d) and (e) are correct
Subtopic: Phylum Porifera | Phylum Ctenophora |
62%
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Match List-I with List-II:
Choose the correct answer from the options given below:
(a) (b) (c) (d)
1. (iv) (iii) (ii) (i)
2. (ii) (iv) (i) (iii)
3. (iii) (i) (ii) (iv)
4. (i) (iv) (iii) (ii)
| List-I | List-II | ||
| a. | Metameric segmentation | (i) | Coelenterata |
| b. | Bioluminescence | (ii) | Annelida |
| c. | Gastrovascular cavity | (iii) | Porifera |
| d. | Body with pores and canals in walls | (iv) | Ctenophora |
Choose the correct answer from the options given below:
(a) (b) (c) (d)
1. (iv) (iii) (ii) (i)
2. (ii) (iv) (i) (iii)
3. (iii) (i) (ii) (iv)
4. (i) (iv) (iii) (ii)
Subtopic: Phylum Porifera | Phylum Coelenterata | Phylum Annelida |
92%
From NCERT
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Read the following statements and choose the correct option.
| Statement A: | Reptiles have a 3-chambered heart, except crocodiles which have a 2-chambered heart. |
| Statement B: | Superclass Pisces shows single circulation as opposed to class Aves which shows double circulation. |
| 1. | Both statements are incorrect. |
| 2. | Only statement A is correct. |
| 3. | Only statement B is correct. |
| 4. | Both statements are correct. |
Subtopic: Study of Reptilia |
77%
From NCERT
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Match Column I with Column II and select the correct option:
1. a(iv), b(iii), c(i), d(ii)
2. a(ii), b(i), c(iii), d(v)
3. a(iii), b(iv), c(i), d(ii)
4. a(iii), b(iv), c(v), d(ii)
| Column I | Column II | ||
| a. | Pennatula | (i) | Sea-lily |
| b. | Gorgonia | (ii) | Sea-hare |
| c. | Antedon | (iii) | Sea-pen |
| d. | Aplysia | (iv) | Sea-fan |
| (v) | Sea-urchin |
2. a(ii), b(i), c(iii), d(v)
3. a(iii), b(iv), c(i), d(ii)
4. a(iii), b(iv), c(v), d(ii)
Subtopic: Phylum Coelenterata |
82%
From NCERT
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Match the following features to the animals. Which is the correct combination?
1. (i), (iii), (iv) and (ii), (v), (vi)
2. (i), (iv), (vi) and (ii), (iii), (v)
3. (i), (iii), (v) and (ii), (iv), (vi)
4. (i), (v), (vi) and (ii), (iii), (iv)
| (i) | Open circulatory system |
| (ii) | Closed circulatory system |
| (iii) | Earthworm |
| (iv) | Malpighian tubules |
| (v) | Nephridia |
| (vi) | Cockroach |
1. (i), (iii), (iv) and (ii), (v), (vi)
2. (i), (iv), (vi) and (ii), (iii), (v)
3. (i), (iii), (v) and (ii), (iv), (vi)
4. (i), (v), (vi) and (ii), (iii), (iv)
Subtopic: Phylum Annelida | Phylum Arthropoda |
77%
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| Assertion(A): | The primary character of chordates is the presence of a dorsal hollow nerve cord. |
| Reason(R): | Vertebral column is derived from the 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: Phylum Chordata |
78%
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| Assertion (A): | The phylum Aschelminthes represent pseudocoelomates |
| Reason (R): | In Aschelminthes, mesoderm is present as scattered pouches in between ectoderm and endoderm |
| 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: Phylum Aschelminthes |
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| Assertion (A): | Respiration occurs through the general body surface in Cephalochordates. |
| Reason (R): | Digestive tract is incomplete in Cephalochordates. |
| 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: Phylum Chordata |
62%
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| Assertion (A) : | Birds possess moist skin. |
| Reason (R) : | Birds possess oil glands throughout their 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. | Both (A) and (R) are false. |
Subtopic: Super Class Pisces & its General Characteristics |
77%
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| Assertion (A) : | The scales of reptiles and fishes are similar in origin. |
| Reason (R) : | All the chordates lack kidneys. |
| 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: Study of Reptilia | Study of Aves & Mammals |
68%
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