Question
| Evidences of evolution | Examples |
| (1) Palaeontological evidences | (a) Duck billed Platypus and Peripatus |
| (2) Connecting links | (b) Remnants and impressions |
| (c) Coccyx and wisdom tooth | |
| (d) Human hand and fore limb of cat |
| Evidences of evolution | Examples |
| (1) Palaeontological evidences | (a) Duck billed Platypus and Peripatus |
| (2) Connecting links | (b) Remnants and impressions |
| (c) Coccyx and wisdom tooth | |
| (d) Human hand and fore limb of cat |
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| Straight chain of carbon atoms | Structural formula | Molecular formula | Name |
| C-C | ______ | ______ | Ethane |
| C-C-C-C | ______ | ______ | Butane |
| C-C-C-C-C-C-C- | ______ | $C_7H_{16}$ | ______ |
| C-C-C-C-C-C-C-C | ______ | $C_8H_{18}$ | ______ |
