1. ECOLOGY THE STUDY OF HOW ORGANISMS INTERACT WITH EACH OTHER AND WITH THEIR PHYSICAL ENVIRONMENT.

2. ENVIRONMENT ORGANIZATION INDIVIDUAL – One organism of a species. POPULATION- All of the organisms of the same species that live in the same area. COMMUNITY- All of the living organisms that live in the same area. ECOSYSTEM- All of the living organisms and nonliving factors in the same area. BIOSPHERE- Anywhere life is found on the planet.

3. INDIVIDUAL POPULATION COMMUNITY ECOSYSTEM BIOSPHERE

4. BIOTIC FACTORS- The living or once living factors in an ecosystem. Ex. human, hawk, plants, fish, turtle

5. ABIOTIC FACTORS- All of the nonliving factors in an ecosystem. Ex. land, water, air, temperature, rocks, sunlight

6. HABITAT - The place where an organism lives.

7. NICHE - The role an organism has in its ecosystem.

8. FEEDING RELATIONSHIPS Most energy that moves through an ecosystem starts with the sun.

9. PRODUCERS can make their own food.

10. PHOTOSYNTHESIS - Chemical process by which plants use light energy to make sugar from water and carbon dioxide.

13. Consumers Obtain energy by eating other organisms.

14. HERBIVORES (CONSUMERS) obtain energy by eating plants.

15. CARNIVORES (CONSUMERS) obtain energy by eating other animals.

16. SCAVENGERS (CONSUMERS) obtain energy by eating the dead remains of animals.

17. OMNIVORES (CONSUMERS) obtain energy by eating both plants and animals.

18. DECOMPOSERS (CONSUMERS) are organisms that feed on waste or on dead organisms.

19. Models of Feeding Relationships Food Chains Food Webs

20. A FOOD CHAIN traces the path of energy as it moves from one organism to the next in an Ecosystem.

21. A FOOD WEB contains several overlapping food chains.

22. Feeding Relationships Between Different Species Predator/Prey Parasite/Host

23. Predator/Prey A PREDATOR (CONSUMER) captures and eats other consumers. A PREY (CONSUMER) is the organism that is captured by a predator. Ex. The lynx is a predator. Her prey is the rabbit.

24. Parasite/Host A PARASITE (CONSUMER) is an organism that lives in or on another organism to obtain energy. A HOST (PRODUCER or CONSUMER) is the organism a parasite lives in or on and obtains energy from. Ex. Cowbird and warblers, roundworms and dogs.