Birds are a group of warm-blooded vertebrates constituting the class Aves, characterized by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton. Written by Mr vivek Kumar Pandey shambhunath.
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ISBN | 9781636330754 |
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Sprache | eng |
Cover | Kartonierter Einband (Kt) |
Verlag | Notion Press |
Jahr | 20200918 |
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