Eukaryotic cells may have evolved through endosymbiosis.

1. Eukaryotic cells may have evolved through endosymbiosis. • Endosymbiosis is a relationship in which one organism lives within the body of another. • Mitochondria and chloroplasts may have developed through endosymbiosis.

2. Endosymbiosis • Animation of Endosymbiosis

3. Mitochondria and chloroplasts have their own DNA • Mitochondria and chloroplasts can copy (replicate) themselves • Mitochondria and chloroplasts are about the same size as prokaryotes • Mitochondria and chloroplasts have circular DNA

5. Evolution Review

6. Question: Which method of dating fossils is the most accurate? (a) relative (b) radiometric (c) superposition

7. Birds are thought to have evolved from: (a) Mammals • Insects • Reptiles • Flying Fish

8. Which two are most closely related? • Shark and dolphin • Shark and wolf • Dolphin and wolf • Shark and bear

9. Endosymbiosis explains the origin of: • Chloroplasts and ribosomes • Chloroplasts and mitochondria • Mitochondria and lysosomes • Ribosomes and lysosomes

10. This scientist suggested that acquired traits are passed to offspring (a) Mendel (b) Darwin (c) Lamarck (d) Weinberg

11. Darwin proposed the idea of ___________ ______________ to explain how species change over time. (a) evolution (b) artificial selection (c) natural selection (d) genetic drift

12. Natural selection Gene flow Genetic drift Mutation What has occurred in the second diagram?

13. Bottleneck and the Founder effect are two types of: • Sexual selection (b) genetic drift (c) Natural selection (d) gene flow

14. The number of offspring an individual has is a measure of his/her evolutionary _ _ _ _ _ _ _.

15. Question: When an ancestral species evolves into an array of species to fit a number of diverse habitats, the result is called: • convergent evolution b) mimicry • adaptive radiation • reproductive isolation

16. What is the name for this type of natural selection?

17. You’re in a room with 3 monkeys. One is holding a banana. One is holding a stick. One is holding nothing. Which primate is the smartest?

18. Whales are thought to have evolved from land-dwelling mammals This is an example of: • Convergent evolution • Macroevolution • Microevolution

19. Question: The wings of birds and the wings of butterflies are examples of ______ structures. (a) analogous (b) homologous (c) vestigial (d) embryological

20. Males of two species of bower birds make different styles of nests to attract females. This is an example of ___ isolation. • Behavioral • Geographic • Temporal • Nesting

21. These structures are ______. • Vestigial • Homologous • Analogous • All of the above

22. An example of this type of natural selection would be: • a) Bacteria becoming resistant to antibiotics • b) Corn plants that are usually of average size • Salmon that are successful when they are sneaky or large/ aggressive

23. Which is NOT a vestigial structure in humans? • A) appendix • B) gall bladder • C) wisdom teeth • D) ear muscles

24. True or false: When sexual selection is acting in a species, all males tend to look alike.

25. (a) Convergent or (b) divergent?

26. Convergent or divergent? (Adaptive radiation)

27. What percent of a sample of carbon-14 will remain after 2 half-lives? (a) 50 % (b) 25 % (c) 14 % (d) 2 %

29. Cardinals immigrate into and emigrate from a forest. This is an example of: (A) natural selection (B) genetic drift (C) sexual selection (D) gene flow