- 1(current)
Q. No.In birds:
| a: | the characteristic feature is the presence of feathers. |
| b: | forelimbs are modified into wings. |
| c: | flight is present in all members. |
| d: | hind limbs do not have scales. |
| 1. | Only (a) and (d) are incorrect |
| 2. | Only (c) and (d) are correct |
| 3. | (a), (b) and (c) are correct |
| 4. | Only (a) and (b) are correct |
Subtopic: Â Study of Aves & Mammals |
 80%
Level 1: 80%+
Hints
Birds are not characterized by:
| 1. | a fully ossified endoskeleton |
| 2. | pneumatic long bones |
| 3. | absence of crop and gizzard in the digestive tract |
| 4. | a dry skin without glands except the oil gland |
Subtopic: Â Study of Aves & Mammals |
 76%
Level 2: 60%+
Hints
Consider the given two statements:
| I: | Birds have a four chambered heart and are warm blooded. |
| II: | Respiration in birds is by lungs that are connected to air sacs. |
| 1. | I is correct but II is incorrect |
| 2. | Both I and II are correct. |
| 3. | Both I and II are incorrect. |
| 4. | I is incorrect but II is correct. |
Subtopic: Â Study of Aves & Mammals |
 85%
Level 1: 80%+
Hints
The most unique characteristic of mammals is the presence of:
| 1. a four chambered heart | 2. a single aortic arch |
| 3. homeothermy | 4. mammary glands |
Subtopic: Â Study of Aves & Mammals |
 88%
Level 1: 80%+
Hints
Which of the following is an egg laying mammal?
| 1. Ornithorhynchus | 2. Macropus |
| 3. Macaca | 4. Balaenoptera |
Subtopic: Â Study of Aves & Mammals |
 86%
Level 1: 80%+
Hints
Flying fox is a/an:
| 1. | Flightless bird |
| 2. | Limbless amphibian |
| 3. | Viviparous mammal |
| 4. | Economically important insect |
Subtopic: Â Study of Aves & Mammals |
 77%
Level 2: 60%+
Hints
- 1(current)
Q. No.
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