• Human Evolution Study Guide
• Evolution Study Guide Questions

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Chapter 15 Evolution Chapter 15 study guide  Key Vocabulary:  Adaptation  Natural selection  Homologous structure  Analogous structure  Vestigial Structure and examples(human).  Divergent evolution  Coevolution  Evolution  Fossil  Convergent evolution Darwin theory of evolution  Darwin’s ideas came from studying animals in the Galapagos islands.

 He studied the species of finches.  They had common ancestors  Different beaks depending on the type of food they ate.  Evolution occurs because of natural selection. Darwin continued  Wrote a book called “The origin of species” that stated species change over time by natural selection. Natural selection  States that organisms with traits well suited to their environment survive and reproduce more successfully than organisms less suited to the same environment.

Natural resources  If natural resources are limited, all organisms must compete for resources.  Population of the same species change over time to adapt to the environment they live in.  Example Finches on the Galapagos islands. Figure 15.5 limbs of animals  Limbs are used differently.  They have different DNA but their nucleotides sequence show many similarities.

Human Evolution Study Guide

 Some must have shared a common ancestor.  Have homologous structures. Evidence of evolution  Similar in proteins and DNA sequence.

 Fossil record  Homologous structure Divergent evolution  The accumulation of differences between population that once formed a single population. The population changes over time.  Same species that have different traits, because they live in different environment.

They adapt to the environment they live in.  Lizards and birds Coevolution  The process in which two or more species become more adapted over time to each other’s presence.  Example: Plants and pollinators(Bees or birds) must have coevolved.  EX: Human and bacteria  Cockroaches and pesticides. Convergent evolution  The process by which different species evolve similar traits.

Evolution Study Guide Questions

 Example: Dolphin and shark. They both have fins and same body shape. Scientists  Read and review the ideas of these scientists:  Jean Baptiste Lamarke  Charles Lyell  Charles Darwin Questions:  How do fossils form?  Examples of fossils?