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प्रश्न
Write the characteristics of class Aves with reference to their body covering and jaws.
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उत्तर
The characteristics of class Aves are:
- The body is covered with feathers.
- They have wings to aid flying
- They have scales on legs.
- They have no teeth.
- They have jaws provided with home beaks
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संबंधित प्रश्न
Categorize the following animals under their appropriate columns of classification
| Animals | ||||
| Dog | Grasshopper | Rat | Scorpin | Toad |
| Butterfly | Lizzard | Turtle | Frog | Bat |
| Snail | Honey bee | Pigeon | Liverfluke | Leech |
| Cattle | snake | Rohu | Parrot | Ascaris |
| Earthworm | Cow | Rabbit | Monkey | Elephant |
|
Classification: |
||||
| Worms | Molluscs | Fishes | Amphibians | Reptiles |
| Birds | Mammals |
Fill in the blank.
Fishes obtain oxygen from water through ......................
Match the following.
| Group | Characteristics | ||
| 1. | Molluscs | a. | Feed milk to young ones, warm-blooded |
| 2. | Spongers | b. | bag-like body with tentacles around the opening |
| 3. | Flatworms | c. | fins, gills and cold-blooded |
| 4. | mammals | d. | body with large opening and many small pores all over |
| 5. | Fish | e. | jointed legs, exoskeleton |
| 6. | cnidarians | f. | have only one opening |
| 7. | arthropods | g. | hard shell, soft body |
| h. | cylindrical, unsegmented body with mouth at one end and anus at the posterior end |
State if the following statement is true or false. Correct the statement if it is false.
Insects belong to the amphibian group of animals.
Mention any one major similarity and one major difference in the following pairs of an animal:
Insects and Birds
Write zoological names of earthworm.
Name the phyla to which following animal belongs: Hydra
Name the phyla to which following animal belongs: Starfish
Bones with air cavities ate seen in ______.
What are pneumatic bones?
