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प्रश्न
Answer the following question.
Reptiles are known for having three-chambered heart. Which animal shows a near four-chambered condition in reptiles?
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उत्तर
Crocodiles have a four chambered heart.
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संबंधित प्रश्न
Answer the following question.
Pinna is part of the external ear and it is found in mammals. Do aves and reptiles show external ear in any form?
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.
Cnidarians and Ctenophorans are both diploblastic. Which other character do they have in common, which is not found in other phyla?
Draw a neat labelled diagram.
Amphioxus
Draw a neat labelled diagram.
Catla
Draw a neat labelled diagram.
Scolidon
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.
