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Concepts 1: Energy & Matter Flow in the Biosphere; Biodiversity TEKS: 2A, 2D, 3C, 3D, 9D, 11D, 12A, 12D, 12E Concept Questions 1. Review the 6 levels of organization. Give an example for each level. 2. What are the two sources where autotrophs obtain their energy? Why are autotrophs referred to as producers? 3. What are heterotrophs? Why do we call them consumers? 4. List the different types of heterotrophs? On what basis to we classify them? 5. Compare and contrast a food chain with a food web. 6. Explain the term “trophic level” 7. What is the 10% rule as it relates to energy transfer in a food chain? 8. List the three most important nutrient cycles. Why is each one crucial to life on earth? 9. What are some of the processes that release carbon to the atmosphere or ocean? What are some processes that remove carbon from these sources? 10. What is the importance of Nitrogen “fixation” to living creatures? 11. Explain ways that an algal bloom might negatively impact an ecosystem or biome? 12. List the major types of community interactions. Explain the different types of symbiotic relationships. 13. List the major threats to biodiversity. Explain how each threat harms the biosphere and what remedies, if any, we are using to curb the harmful effects? Resources: Prentice Hall Biology: Chapters 3-6, class notes and labs Houghton Mifflin Biology: Chapters 13 -16, class notes and labs Chapter 13 Assessment Due: Test: Quizzes are frequent and are not announced. When the due date arrives or the topic has been discussed, it’s testable. Vocabulary: Please remember this is not a vocabulary test, you will be expected to apply these words not just know the definitions. photosynthesis autotroph producer chemosynthesis heterotroph sulfur oxide carnivore consumer herbivore omnivore detritivore nitrogen oxide food web decomposer food chain trophic level energy pyramid biomass biogeochemical cycle acid rain condensation precipitation evaporation transpiration denitrification nutrient nitrogen fixation limiting nutrient algal bloom habitat competitive exclusion principle niche predation symbiosis mutualism commensalism ecosystem diversity parasitism biodiversity species diversity genetic diversity extinction endangered species abiotic factors biotic factors population ecosystem individual species biosphere community biome habitat fragmentation biological magnification ozone layer invasive species conservation global warming specialist generalist carbon cycle keystone species nitrogen cycle Prefixes, suffixes, and roots: bio-logy cohesion adphytozooterraaquaautophotochemo- -synthesis homocarndetrit-troph heteroherbomni-vore geo-