Dna cell wall ribosomes c explain the endosymbiotic

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Unformatted text preview: d eukaryotes. • DNA • Cell wall • Ribosomes (c) Explain the endosymbiotic theory of the origin of eukaryotic cells and discuss an example of evidence supporting this theory. © 2006 The College Board. All rights reserved. Visit apcentral.collegeboard.com (for AP professionals) and www.collegeboard.com/apstudents (for students and parents). GO ON TO THE NEXT PAGE. 2 2006 AP® BIOLOGY FREE-RESPONSE QUESTIONS 2. According to fossil records and recent published observations, two species of leaf-eating beetles (species A and B) have existed on an isolated island in the Pacific Ocean for over 100,000 years. In 1964 a third species of leafeating beetle (species C) was accidentally introduced on the island. The population size of each species has been regularly monitored as shown in the graph above. (a) Propose an explanation for the pattern of population density observed in species C. (b) Describe the effect that the introduction of beetle species C has had on the population density of species A and species B. Propose an explanation for the patterns of population density observed in species A and in species B. (c) Predict the population density of species C in 2014. Provide a biological explanation for your prediction. (d) Explain why invasive species are often successful in co...
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