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प्रश्न
Name the phyla to which following animal belongs: Leech
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उत्तर
Annelida
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संबंधित प्रश्न
Fill in the blank.
Annelids have special organs of excretion called ..............
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.
ant, cockroach, spider, dragonfly
Find the odd one out. Give reason.
frog, shark, seahorse, carp
Find the odd one out. Give reason.
snail, oyster, earthworm, octopus
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.
Fish - Gills, paired fins, ear drum
Write important characters of chordates?
Assertion (A): Mammals give birth to their young ones.
Reason (R): Platypus is an egg-laying mammal.
Write a note on mammals.
