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प्रश्न
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 |
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उत्तर
| Group | Characteristics | ||
| 1. | molluscs | e. | Jointed legs, exoskeleton |
| 2. | sponges | d. | body with large opening and many small pores all over |
| 3. | flatworms | f. | have only one opening |
| 4. | mammals | a. | feed milk to young ones, warm-blooded |
| 5. | fish | c. | fins, gills and cold-blooded |
| 6. | cnidarians | b. | bag-like body with tentacles around the opening |
| 7. | arthropods | g. | hard shell, soft body |
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