1. REVIEW: WHAT ARE THE 5 EVIDENCES OF A CHEMICAL REACTION  What are the 5 evidences of a chemical reaction?

2. SYMBIOTIC RELATIONSHIPS

3. ECOSYSTEM  A community of organisms that live in an area + their non living surroundings  Biotic & Abiotic factors Organism  Population  Community  Ecosystem

4. DEPENDENT RELATIONSHIPS Dependent vs. Independent (Dependent depends on others) 1. Producer/Consumer - Slide 2. Predator/Prey – E 27, 28 3. Mutualism – E 30 4. Commensalism – E 30 5. Parasitism – E 31

5. SYMBIOSIS = LIVING TOGETHER  Close relationship between 2 species

6. PRODUCER/CONSUMER

7. DEPENDENT RELATIONSHIPS Write a SIMPLE definition and then DRAW an example Dependent vs. Independent (Dependent depends on others) 1. Producer/Consumer - Slide 2. Predator/Prey – E 27, 28 3. Mutualism – E 30 4. Commensalism – E 30 5. Parasitism – E 31

8. PREDATION  Predator: kills another organism for food  Prey: organism that gets killed  Predator kills prey for food

9. MUTUALISM  Both species benefit

10. COMMENSALISM  One species benefits & the other is neither helped or harmed

11. PARASITISM  One organism lives in or on another organism and harms it

20. FOOD CHAINS

21. FOOD WEBS

24. FOOD WEB ACTIVITY