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प्रश्न
Fill in the blanks:
Nephridia are the excretory organs of ______.
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उत्तर
Nephridia are the excretory organs of Annelida.
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संबंधित प्रश्न
Prepare a list of some animals that are found parasitic on human beings.
Match the animals given under column A with their respective classification group given under column B
| Column A | Column B | ||
| 1 | Sponge | a | Amphibia |
| 2 | Snail | b | Reptilia |
| 3 | Butterfly | c | Echinodermata |
| 4 | Toad | d | Mollusca |
| 5 | Lizard | e | Arthropoda |
| 6 | Starfish | f | Porifera |
What do you mean by the term triploblastic animals? Give two example.
Write short note on protochordates.
Give one point of difference between notochord and nerve cord.
Given below is an animal followed by three terms or features. Underline the term which does not match with the animal.
Butterfly- Insecta, Invertebrata, Mollusca
Name three animals (belonging to different classes) which breathe by means of lungs but have no external ears (pinnae).
Name any two animals which possess compound eyes.
Fill in the blanks:
Dog fish belongs to phylum ______.
Consider the following statements:
- Annelids are true coelomates
- Poriferans are pseudocoelomates
- Aschelminthes are acoelomates
- Platyhelminthes are pseudocoelomates
Choose the correct answer from the options given below:
