Complete the following chart. | Era | Dominating group of animal | |---|---| | 1. Cenozoic | .................. | | 2. .................. | Reptiles | | 3. Palaeozoic | .................. | | 4. .................. | Invertebrates |
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Start your 14-day free trial to unlock the full solution →Cenozoic = age of Mammals, Mesozoic = age of Reptiles, Palaeozoic = age of Amphibians (and fishes), Proterozoic = age of Invertebrates.
Step 1. The Cenozoic Era's Table 5.15 entries describe the rise and diversification of mammals, culminating in the 'age of mammals' and the development of modern man, so its dominant animal group is Mammals.
Step 2. The blank paired with 'Reptiles' corresponds to the Mesozoic Era, whose periods (Triassic, Jurassic, Cretaceous) are described as the appearance and rise of dinosaurs and the general dominance of reptiles.
Step 3. The Palaeozoic Era's later periods (notably the Carboniferous) are explicitly described in the table as the 'age of amphibian', with fishes also diversifying through the earlier Palaeozoic periods, so Amphibians is its dominant animal group for this chart. …
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