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

2. “The Biological Organization of Living Things”

3. INDIVIDUAL/ORGANISM 1 ORGANISM OF A SPECIES Example: African lion
Genus: Panthera
Species: leo

4. POPULATION
ALL OF THE ORGANISMS OF THE SAME SPECIES THAT LIVE IN THE SAME AREA.
Lion population – same species that live in the same area

5. COMMUNITY ALL OF THE POPULATIONS THAT LIVE IN THE SAME AREA.
The lions community consists of elephants, hyenas, crocodiles, gazelles, trees, etc.

6. ECOSYSTEM
ALL OF THE LIVING ORGANISMS AND NON LIVING FACTORS IN THE SAME AREA.
Living: lions, elephants, gazelles
Non-living: water, soil, air, sunlight

7. BIOME
A LARGE REGION THAT HAS A DISTINCT CLIMATE AND SPECIFIC TYPES OF PLANT AND ANIMAL LIFE
Biome: African Savanna

8. BIOSPHERE
THE PART OF EARTH THAT SUPPORTS LIFE

10. Largest
Smallest

11. BIOTIC FACTORS- The living or once living factors in an ecosystem.
ex. humans, hawk, plants, fish, turtle, bacteria, algea

12. ABIOTIC FACTORS- All of the nonliving
factors in an ecosystem.
ex. land, water, air, temperature, sunlight

13. HABITAT- The place an organism lives.
(ex. The snake’s habitat is the pond.)

14. NICHE- The role/job an organism has in its ecosystem.

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

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

19. PRODUCERS- can make their own
food

20. HERBIVORES (CONSUMERS)-
obtain energy by eating plants

21. CARNIVORES (CONSUMERS)-
obtain energy by eating other
animals (they eat meat)

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

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

24. DECOMPOSERS- Organisms that
feed on dead matter and breaks them down into nutrients that are returned to the soil

25. FOOD CHAIN- traces the path of
energy as it moves from one
organism to the next in an
ecosystem

26. FOOD WEB- several overlapping
food chains

27. RELATIONSHIPS BETWEEN DIFFERENT SPECIES
COMPETITION- occurs when organisms compete for the same resource
PREDATION- feeding relationship where one organism captures, kills, and eats another organism
SYMBIOSIS- a close relationship between two species

28. COMPETITION

29. PREDATION

30. SYMBIOSIS A close relationship between 2 different species

31. MUTUALISM- both species benefit

32. COMMENSALISM- one species
benefits and the other is unaffected l

33. PARASITISM- one species benefits
and the other is harmed