1. PRINCIPLES OF ECOLOGY ORGANISMS AND THEIR RELATIONSHIPS

2. OBJECTIVES  EXPLAIN THE DIFFFERENCE BETWEEN ABIOTIC FACTORS AND BIOTIC FACTORS  DESCRIBE LEVELS OF BIOLOGICAL ORGANIZATION  DIFFERENTIATE BETWEEN AN ORGANISM’S HABITAT AND NICHE

3. August 29, 2011 BELL RINGER  What are the steps in the Scientific Method.

4. August 30, 2011  Define the term organism  Define the term niche  Define the term biosphere

5. Milestones in Ecology  Ecology-  Timeline on page 32-33- conservation of Yellowstone to Wangari Maathai.  Biosphere-  Biotic Factors-  Abiotic Factors-  Compare and contrast abiotic and biotic factors

6. LEVELS OF ORGANIZATION  Organism  Population  Biological community  Ecosystem  Biome  Biosphere  Refer to figure 2.6 as you read.

7. ECOSYSTEM INTERACTIONS  Interactions between an organism and its ecosystem.  Habitat  Niche  Compare and contrast a habitat and a niche.

8. COMMUNITY INTERACTIONS  COMPETITION  PREDATION  SYMBIOTIC RELATIONSHIPS:  Symbiosis  Mutualism  Commensalism  Parasitism

9. Section 2.2 Flow of Energy in an Ecosystem  Autotrophs capture energy, making it available or all members of a food web.  Autotrophs  Heterotrophs: herbivore, carnivore, omnivore, detritivore.

10. MODELS OF ENERGY FLOW  TROPHIC LEVEL-  Food chains- producer→heterotroph→consumer  Food webs-producer→ 1 st consumer →2 nd consumer →3 rd consumer

11. Ecological Pyramids BIOMASS-- PYRAMID OF ENERGY-10% RULE PYRAMID OF BIOMASS- PYRAMID OF NUMBERS-

12. CYCLING OF MATTER  CYCLES IN THE BIOSPHERE  Matter-  Nutrient-  Biogeochemical cycle-  Explain why it is important to living organisms the nutrients cycle.

13. WATER CYCLE  USE FIGURE 2.17 TO TRACE PROCESSES THAT CYCLE WATER.  Identify three processes in the water cycle.  What is a hydrologists?

14. THE CARBON AND OXYGEN CYCLE  How does carbon move from the abiotic to the biotic parts of the ecosystem?

15. THE NITROGEN CYCLE  NITROGEN FIXATION-  ELECTRICAL STORMS-  PLANTS ABSORBS FROM SOIL-  DENITRIFICATION-

16. THE PHOSPHOROUS CYCLE  Phosphorus essential element for the growth and development of organisms.  Two cycles-one is short term- and long term  Found in small amounts in soil  May limits the growth of producers.  Who are the producers.

17. Construct a simple food web  Food web must have at least 5 organisms listed.  Page 55-complete the document-based questions; numbers 40 and 41