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प्रश्न
Answer in detail.
Write a short note on annelids.
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उत्तर
Annelids are invertebrates which include segmented worms. They are found in moist soil and pond water. They have a soft, cylindrical, and bilaterally symmetrical body. Their body surface is marked into ring-like compartments called segments that help in movement. They have a special organ of excretion called nephridia.
Examples: Leech and earthworm.
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संबंधित प्रश्न
Fill in the blank.
.................. do not have a backbone, while vertebrates have it.
Fill in the blank.
Most arthropods have a tough outer body covering called ..........................
Fill in the blank.
A ................. has an external coiled shell.
Fill in the blank.
................. is an example of a crustacean.
Select the most appropriate answer.
The body temperature of warm-blooded animals
Differentiate between
insects and crustaceans
Find the odd one out. Give reason.
snail, oyster, earthworm, octopus
Answer in detail.
List two notable characteristic of birds which is not found in any other group of animals?
Given below is an animal followed by three terms or features. Underline the term which does not match with the animal.
Pigeon - Feathers, wings, hair
Which group of animals have following characteristics: Body soft, covered by mantle and a calcareous shell.
