- 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
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
The following schematic diagram of a part of skeleton can be that of a/an:
| 1. | Amphibian | 2. | Reptile |
| 3. | Bird | 4. | Mammal |
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. |
2. Both I and II are correct.
3. Both I and II are incorrect.
4. I is incorrect but II is correct.
| Biological name | Common name | |
| 1. | Aptenodytes | Penguin |
| 2. | Pavo | Peacock |
| 3. | Struthio | Pigeon |
| 4. | Psittacula | Parrot |
| 1. a four chambered heart | 2. a single aortic arch |
| 3. homeothermy | 4. mammary glands |
| 1. Ornithorhynchus | 2. Macropus |
| 3. Macaca | 4. Balaenoptera |
| 1. | Flightless bird | 2. | Limbless amphibian |
| 3. | Viviparous mammal | 4. | Economically important insect |
The bone structure in the following diagram shows:
1. Adaptation for flight in birds
2. Presence of excess of the hemopoietic tissue in mammals
3. Rudimentary limb bones in some repltiles
4. Bone of forelegs of frogs
As you can see from the given pie chart, over 70% of Mammalia species come from a single order. Which order of class mammalian is this?
| 1. | Rodentia | 2. | Chiroptera |
| 3. | Carnivora | 4. | Primata |
- 1(current)
Q. No.
© 2024 GoodEd Technologies Pvt. Ltd.