
To compare: Between the terrestrial communities in the Devonian and the Cretaceous periods.
Introduction: Change in the heritable characteristics of the living organisms over time is known as evolution. Evolution takes place mainly due to evolutionary forces such as mutation, genetic recombination, and so on. Fossils of insects have been found to belong to the Devonian period. Lobe-finned fishes evolved into tetrapods during the late Devonian period. Evolution of dinosaurs and modern birds took place in the late Cretaceous period.
To explain: The differences between the diversity of plants and animals in the Devonian and the Cretaceous periods and develop some hypotheses as to why those differences existed.
Introduction: Change in the heritable characteristics of the living organisms over time is known as evolution. Evolution takes place mainly due to evolutionary forces such as mutation, genetic recombination, and so on. Fossils of insects have been found to belong to the Devonian period. Lobe-finned fishes evolved into tetrapods during the late Devonian period. Evolution of dinosaurs and modern birds took place in the late Cretaceous period.

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Chapter 17 Solutions
Evolution, Fourth Edition (looseleaf)
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