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प्रश्न
Fill in the blank.
The animals without a backbone whose body is soft and often covered by a hard shell are .................
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उत्तर
The animals without a backbone whose body is soft and often covered by a hard shell are molluscs.
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संबंधित प्रश्न
Write one difference between the following pair:
Porifera and Coelenterata.
Write the characteristics of class Aves with reference to their body covering and jaws.
Match the following.
| Group | Characteristics | ||
| 1. | Molluscs | a. | Feed milk to young ones, warm-blooded |
| 2. | Spongers | b. | bag-like body with tentacles around the opening |
| 3. | Flatworms | c. | fins, gills and cold-blooded |
| 4. | mammals | d. | body with large opening and many small pores all over |
| 5. | Fish | e. | jointed legs, exoskeleton |
| 6. | cnidarians | f. | have only one opening |
| 7. | arthropods | g. | hard shell, soft body |
| h. | cylindrical, unsegmented body with mouth at one end and anus at the posterior end |
Find the odd one out. Give reason.
snake, alligator, eel, turtle
Write a short answer.
What are invertebrates ?
Answer in detail.
List four characteristics of reptiles.
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.
Name the various classes of chordates with two examples.
Which group of animals have following characteristics: Multicellular body not organized into tissues.
Cyclostmes are ______.
