Q. No.Match List I with List II
Choose the correct answer from the options given below:
| List I | List II |
| A. Class Aves | I. Presence of air bladder |
| B. Class Chondrichthyes | II. Circular and sucking mouth |
| C. Class Osteichthyes | III. Air cavities in bones |
| D. Class Cyclostomata | IV. Absence of operculum |
Choose the correct answer from the options given below:
| 1. | A-IV, B-I, C-II, D-III |
| 2. | A-II, B-IV, C-I, D-III |
| 3. | A-III, B-I, C-IV, D-II |
| 4. | A-III, B-IV, C-I, D-II |
Subtopic: Â Study of Aves & Mammals |Â Super Class Pisces & its General Characteristics |
 82%
Level 1: 80%+
Hints
In contrast to Aves, mammals have:
Choose the correct answer from the options given below:
| A. | synsacrum |
| B. | corpus callosum |
| C. | mammary gland without teats |
| D. | ear pinna |
| E. | pneumatic bones |
| 1. | B and D only |
| 2. | A, B and D only |
| 3. | C, D and E only |
| 4. | A and E only |
Subtopic: Â Study of Aves & Mammals |
Level 3: 35%-60%
Hints
Match items in column-I with those in column-II and choose the correct option.
| Column-I | Column-II | ||
| A. | Cyclostomata | (i) | Mouth without jaws |
| B. | Chondrichthyes | (ii) | Exclusively oviparous |
| C. | Aves | (iii) | Gills without operculum |
| D. | Mammalia | (iv) | Unique in possessing hair |
| A | B | C | D | |
| 1. | (i) | (ii) | (iii) | (iv) |
| 2. | (ii) | (iii) | (iv) | (i) |
| 3. | (i) | (iii) | (ii) | (iv) |
| 4. | (ii) | (i) | (iv) | (iii) |
Subtopic: Â Phylum Chordata |Â Comparative study of Cartilagenous & Bony Fishes |Â Study of Aves & Mammals |
 87%
Level 1: 80%+
Hints
Read the following statements A and B and choose the correct answer.
| Statement A: | The most unique mammalian characteristic is the presence of milk-producing mammary glands. |
| Statement B: | Mammals have one pair of limbs, adapted for walking, running, climbing, burrowing swimming, or flying. |
| 1. | Both statements A and B are correct. |
| 2. | Only statement A is incorrect. |
| 3. | Both statements A and B are incorrect. |
| 4. | Only statement B is incorrect. |
Subtopic: Â Study of Aves & Mammals |
 57%
Level 3: 35%-60%
Hints
Match items in column-I with those in column-II and choose the correct option.
| Column-I | Column-II | ||
| (a) | Exocoetus | (i) | Tympanum represents the ear |
| (b) | Trygon | (ii) | Marine bony fish |
| (c) | Salamandra | (iii) | Air sacs connected to lungs |
| (d) | Aptenodytes | (iv) | Cartilaginous marine fish |
| (a) | (b) | (c) | (d) | |
| 1. | (i) | (ii) | (iii) | (iv) |
| 2. | (iv) | (iii) | (ii) | (i) |
| 3. | (ii) | (iv) | (i) | (iii) |
| 4. | (i) | (iii) | (ii) | (iv) |
Subtopic: Â Study of Reptilia |Â Study of Aves & Mammals |Â Super Class Pisces & its General Characteristics |
 88%
Level 1: 80%+
Hints
Match column-I with column-II and choose the correct option:
| Column-I | Column-II | ||
| A. | Vipera | (i) | Oil gland at the base of the tail |
| B. | Columba | (ii) | Heterodont dentition |
| C. | Scoliodon | (iii) | Crawling mode of Locomotion |
| D. | Panthera | (iv) | Pelvic fins bear claspers in males |
| 1. | A(i), B(ii), C(iv), D(iii) |
| 2. | A(iii), B(i), C(iv), D(ii) |
| 3. | A(iv), B(ii), C(i), D(iii) |
| 4. | A(iii), B(iv), C(ii), D(i) |
Subtopic: Â Study of Amphibians |Â Study of Reptilia |Â Study of Aves & Mammals |
 92%
Level 1: 80%+
Hints
| 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: Â Study of Reptilia |Â Study of Aves & Mammals |
 69%
Level 2: 60%+
Hints
Given below are two statements:
| Assertion (A): | All birds, except the ones like koel (cuckoo), build nests for retiring and taking rest during night time. |
| Reason (R): | Koel lays its eggs in the nests of tailor bird. |
| 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 Study of Aves & Mammals |
Level 3: 35%-60%
Hints
Given below are two statements:
| Assertion (A): | Bats and whales are classified as mammals. |
| Reason (R): | Bats and whales have four-chambered heart. |
| 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 Study of Aves & Mammals |
 75%
Level 2: 60%+
Hints
Given below are two statements:
| Assertion (A): | The duck-billed platypus and the spiny ant-eater, both are egg laying animals yet they are grouped under mammals. |
| Reason (R): | Both of them have seven cervical vertebrae and 12 pairs of cranial nerves. |
| 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 Study of Aves & Mammals |
 66%
Level 2: 60%+
Hints
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