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प्रश्न
Fill in the blank.
The backbone of vertebrates is made up of a number of small bones called .....................
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उत्तर
The backbone of vertebrates is made up of a number of small bones called vertebrae.
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संबंधित प्रश्न
Tick (✓) the appropriate answer:
Identify the aquatic animal with scaly skin which breathe with gills
Write the characteristics of class Aves with reference to their body covering and jaws.
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.
................. have three pairs of jointed legs.
Fill in the blank.
The animals without a backbone whose body is soft and often covered by a hard shell are .................
Answer in detail.
Write two characteristics of amphibians.
Classify the given animals into different categories indicated.
Jellyfish, liver fluke, pinworm, Ascaris, tapeworm, Hydra, sea anemone into cnidarians, Platyhelminthes, and Nemathelminthes.
Given below are groups of animals, and their characteristics features. Some of the features are incorrect. Identify the odd one out in each.
| Group | Characteristic features | Odd one out |
| Porifera | porous animals, have tentacles, fixed to surface | |
| Amphibia | cold-blooded, lungs in adults, scaly skin | |
| Aves | cold-blooded, wings, feathers, bones with large air spaces | |
| Pisces | live in water, scaly skin warm-blooded, fins for swimming |
Give any one difference between protozoa and Metazoa.
What are pneumatic bones?
