List I | List II | ||
A. | Taenia | I. | Nephridia |
B. | Paramoecium | II. | Contractile vacuole |
C. | Periplaneta | III. | Flame cells |
D. | Pheretima | IV. | Urecose gland |
Options: | A | B | C | D |
1. | II | I | IV | III |
2. | I | II | III | IV |
3. | I | II | IV | III |
4. | III | II | IV | I |
1. | Echinodermata D | 2. | Ctenophora |
3. | Hemichordata | 4. | Coelenterata |
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) | Contractile vacuole | (I) | Asterias |
(B) | Water vascular system | (II) | Amoeba |
(C) | Canal system | (III) | Spongilla |
(D) | Flame cells | (IV) | Taenia |
Options: | (A) | (B) | (C) | (D) |
1. | IV | II | I | III |
2. | I | III | II | IV |
3. | III | II | I | IV |
4. | II | I | III | IV |
A. | Platyhelminthes are triploblastic pseudocoelomate and bilaterally symmetrical organisms. |
B. | Ctenophores reproduces only sexually and fertilization is external |
C. | In tapeworm, fertilization is internal by sexes are not separate |
D. | Ctenophores are exclusively marine, diploblastic and bioluminescent organisms |
E | In sponges, fertilization is external and development is direct. |
1. | (A), (C) and (D) only | 2. | (B), (C) and (D) only |
3. | (A) and (E) only | 4. | (B) and (D) only |
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 not correct but (R) is correct. |
2. | Both (A) and (R) are correct and (R) is the correct explanation of (A). |
3. | Both (A) and (R) are correct but (R) is not the correct explanation of (A). |
4. | (A) is correct but (R) is not correct. |
Air bladder is found in :
1. | Osteichthyes | 2. | Aves |
3. | Cyclostomata | 4. | Chondrichthyes |
Given below are two statements:
I | Amphibians and reptiles have a 3-chambered heart with two atria and a single ventricle, and are oviparous in nature |
II | Crocodiles possess a 4 chambered heart with two ventricles and two atria and are viviparous in nature |
Select the most appropriate option:
1. I is correct but II is incorrect.
2. I is incorrect but II is correct.
3. Both I and II are correct.
4. Both I and II are incorrect.