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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 .................
उत्तर
The animals without a backbone whose body is soft and often covered by a hard shell are molluscs.
APPEARS IN
संबंधित प्रश्न
Tick (✓) the appropriate answer:
The unicellular organism causing malaria
Give two examples of Segmented worms:
Select the most appropriate answer.
Organs of excretion in annelids are
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 |
Answer in detail.
Name the different classes of arthropods. Write one characteristic feature of each class.
Mention any one major similarity and one major difference in the following pairs of an animal:
Snakes and Earthworms
Mention any one major similarity and one major difference in the following pairs of an animal:
Cuttlefish and Dogfish
Name the phyla to which following animal belongs: Scorpion
Bones with air cavities ate seen in ______.
On the basis of the position of the notochord, classify the different prochordates. Justify your answer.
