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प्रश्न
Fill in the blank.
Invertebrates with jointed legs belong to ....................
उत्तर
Invertebrates with jointed legs belong to arthropods.
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संबंधित प्रश्न
Write one difference between the following pair:
Porifera and Coelenterata.
Fill in the blank.
The backbone of vertebrates is made up of a number of small bones called .....................
Write a short answer.
What do you mean by the radially symmetrical body?
Answer in detail.
How do fish exchange gases?
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 |
Mention any one major similarity and one major difference in the following pairs of an animal:
Whales and Fishes
Giving birth to young ones is described as ______.
______ is the unique characteristic feature of mammals.
Why are eggs of reptiles covered with shells unlike the eggs of amphibians?
What are pneumatic bones?
