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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
Give two examples of Amphibians:
Give two examples of Coelenterates:
Write one difference between the following pair:
Arthropoda and Mollusca
Fill in the blank.
Vertebrates which spend a part of their life on land but reproduce in water are called ..................
Write a short answer.
What do you mean by the radially symmetrical body?
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 |
Given below is an animal followed by three terms or features. Underline the term which does not match with the animal.
Monkey - External ear, sweat glands, lateral line.
Mention any one major similarity and one major difference in the following pairs of an animal:
Whales and Fishes
Name the various classes of chordates with two examples.
The notochord extends throughout the entire length of the body is ______.
