Support for Evolution Worksheet Name: __ P: _ 1. Complete the concept map below: 2. How do fossils formed in different rock layers provide evidence of evolution? _____________________________________________________________________________________________________ _____________________________________________________________________________________________________ 3. How did Darwin explain the existence of similar but unrelated species? _____________________________________________________________________________________________________ _____________________________________________________________________________________________________ 4. Structures that have different mature forms but develop from the same embryonic tissues are called _____________________________________________________________________________________________________ 5. Is the following sentence true or false? Homologous structures provide strong evidence that all four-limbed vertebrates have descended, with modifications, from common ancestors. _____________________________ 6. Organs that are so reduced in size that they are just vestiges, or traces, of homologous organs in other species are called _____________________________________________________________________________________________________ 7. According to Darwin’s theory, what happens to individuals whose characteristics are not well suited to their environment? _____________________________________________________________________________________________________ _____________________________________________________________________________________________________ 8. Provide an example of a vestigial organ and explain why it is one _____________________________________________________________________________________________________ _____________________________________________________________________________________________________ 9. Explain why embryological development supported Darwin’s theory _____________________________________________________________________________________________________ _____________________________________________________________________________________________________ 10. In the space below, write out a summary of the main points of Darwin’s theory of natural selection 11. How does an animal’s level of fitness relate to its chances of survival and reproduction? _____________________________________________________________________________________________________ _____________________________________________________________________________________________________ 12. Study the homologous structures below and answer the following questions: a. How are the forelimbs of the human and bat similar? _____________________________________________________________________________________________ _____________________________________________________________________________________________ b. How are homologous structures such as forelimbs evidence for common descent? _____________________________________________________________________________________________ _____________________________________________________________________________________________ 13. Complete the matching questions below: