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प्रश्न
Fill in the blank.
Most arthropods have a tough outer body covering called ..........................
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उत्तर
Most arthropods have a tough outer body covering called exoskeleton.
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संबंधित प्रश्न
Write one difference between the following pair:
Porifera and Coelenterata.
Fill in the blank.
A ................. has an external coiled shell.
Find the odd one out. Give reason.
frog, shark, seahorse, carp
Find the odd one out. Give reason.
snake, alligator, eel, turtle
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.
Whale - Gills, mammary glands, fat under the skin
Mention any one major similarity and one major difference in the following pairs of an animal:
Snakes and Earthworms
Name the various classes of chordates with two examples.
Name the phyla to which following animal belongs: Hydra
Write a note on mammals.
