1. Ecology Relationships Among Organisms
Topic 4

2. Nutritional Relationships

3. Nutritional Relationships
Transfer of nutrients between organisms

4. Autotrophs = Producers
Make their own food
Synthesize organic molecules from inorganic raw materials

5. Heterotrophs = Consumers
Do not make own food
Depend on other organisms for food

6. Herbivores
Eat producers

7. Omnivores
Eat both plants and animals

8. Carnivores
Animals which eat other animals

9. Decomposers
Organisms which feed by breaking down organic matter from dead organisms

10. Food Chain
What eats what

11. Food Web
Interconnected group of food chains

12. Trophic Levels
One step in a food pyramid

13. Tertiary Consumers
Secondary Consumers
Primary Consumers
Producers

14. Pyramid of Energy Energy is LOST between trophic levels
More energy in producers
Less energy in consumers

15. Pyramid of Biomass Biomass- amount of organic matter
More producers than consumers

16. Pyramid of Biomass