Q. No.Exocoetus, Labeo, Clarias and Pterophyllum are all:
1. endotherms
2. marine fishes
3. protochordates
4. bony fishes
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
| 1. | Most have two pairs of limbs and tail is present in some. |
| 2. | Alimentary canal, urinary and reproductive tracts open into a common chamber called cloaca which opens to the exterior. |
| 3. | Respiration is by gills, lungs and through skin. |
| 4. | The heart is two chambered with one atrium and one ventricle. |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
I. are terrestrial
II. have a three-chambered heart
| 1. Only I is correct | 2. Only II is correct |
| 3. Both I and II are correct | 4. Both I and II are incorrect |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
| I: | Body is covered by dry and cornified skin, dermal scales or scutes. |
| II: | External ear is not present and tympanum represents the ear. |
| III: | Scales are shed as skin cast in all members. |
| IV: | Fertilization is internal and development is direct. |
| 1. | Only II is correct | 2. | Only II and IV are correct |
| 3. | All are correct | 4. | Only I and II are incorrect |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
| 1. | Crocodile | 2. | Wall lizard |
| 3. | Turtle | 4. | Tortoise |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
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
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
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
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
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.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
| Biological name | Common name | |
| 1. | Aptenodytes | Penguin |
| 2. | Pavo | Peacock |
| 3. | Struthio | Pigeon |
| 4. | Psittacula | Parrot |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
| 1. a four chambered heart | 2. a single aortic arch |
| 3. homeothermy | 4. mammary glands |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
© 2024 GoodEd Technologies Pvt. Ltd.