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प्रश्न
Answer the following question.
Crab and Snail both have a protective covering. Is it made up of the same material?
उत्तर
No, the protective covering is not made up of same material in crab and snail. The protective covering of crabs is made up of chitin and that of snails is made up of calcium carbonate.
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संबंधित प्रश्न
Answer the following question.
Reptiles are known for having three-chambered heart. Which animal shows a near four-chambered condition in reptiles?
Answer the following question.
Fish and frog can respire in water. Can they respire through their skin? If yes, why do they have gills?
Answer the following question.
Fish and snake both have scales. How do these scales differ from each other?
Draw a neat labelled diagram.
Balanoglossus
Match the following.
| Phylum | Characters |
| i. Annelida | a. Tube feet |
| ii. Mollusca | b. Ostia |
| iii. Ctenophora | c. Radula |
| iv. Porifera | d. Parapodia |
| v. Echinodermata | e. Comb plates |
Identify the animal given in the picture and write features of its phylum/class.
Identify the animal given in the picture and write features of its phylum/class.
Identify the animal given in the picture and write features of its phylum/class.
Identify the animal given in the picture and write features of its phylum/class.
Identify the animal given in the picture and write features of its phylum/class.
