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प्रश्न
Fill in the blank.
Annelids have special organs of excretion called ..............
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उत्तर
Annelids have special organs of excretion called nephridia.
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संबंधित प्रश्न
Give two examples of Coelenterates:
Write one difference between the following pair:
Porifera and Coelenterata.
Fill in the blank.
........................... are considered as farmers’ friend of farmers.
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 |
Differentiate between
flatworms and roundworms
State if the following statement is true or false. Correct the statement if it is false.
Fish have fins, scales and they breathe through gills.
Which ones of the following animals are invertebrates?
Housefly, Silverfish, Trout, Jellyfish, Whale, Penguin, Lizard and Sponge
Name the various phyla of non-chordates with two examples.
Name the phyla to which following animal belongs: Starfish
What are pneumatic bones?
