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Explain how animals in Vertebrata are classified into further subgroups.
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1. Pisces: Typically lives in water. It has a streamlined body. Locomotion is carried out with the help of muscular tail. Body is covered with scales. Paired gills are present; which can breathe oxygen dissolved in water. Animals are cold blooded. They lay eggs. Possesses 2 chambered heart.
2. Amphibia: These animals can live both, on land and in water. The animals breathe through skin when in water and through lungs when on land. Animals are cold-blooded.
3. Reptilia: Crawling movement is observed in animals classified under Reptilia. Scales are seen. Most of the reptilians have three chambered heart but crocodile has four-chambered heart.
4. Aves: These animals are evolved for flight. The body is covered with feathers. Wings are modified from fore-limbs. Animals are warm blooded. Possesses 4 chambered heart. Bones are hollow (pneumatic); which assists in flying. This class comprises of all birds.
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| Question Text | Explain how animals in Vertebrata are classified into further subgroups. |
| Updated On | Jan 28, 2023 |
| Topic | Diversity in Living Organisms |
| Subject | Science |
| Class | Class 9 |
| Answer Type | Text solution:1 Video solution: 4 |
| Upvotes | 445 |
| Avg. Video Duration | 8 min |
