1. ECOSYSTEMS (relationships and competition for limiting factors )

2. Ecosystems…  Include all the different organisms living in a certain area and the physical environment

3. Ecosystems… Do not have clear boundaries between them… organisms move from one ecosystem to another

4. ORGANISM: one individual living thing ONE red zebra fish

5. SPECIES- Group of organisms able to reproduce fertile offspring that resemble each other all red zebra fish

6. POPULATION: group of individuals of the same species living in the same area all red zebra fish living in Bobcat Lake

7. COMMUNITY: group of interacting populations of different species in the same area all red zebra fish, snails, seaweed, and purple fish living in Bobcat Lake

8. ECOSYSTEM: a community and the abiotic factors that affect it

9. PRODUCERS Form the base of all ecosystems Organisms that make their own food (by photosynthesis)

10. CONSUMERS Depend on producers for survival Organisms that eat producers or other consumers PRIMARY- eat producers SECONDARY- eat other consumers

11. PRIMARY CONSUMERS

12. SECONDARY CONSUMERS

13. Organisms that digest producers and consumers when they die DECOMPOSERS & SCAVENGERS

14. DECOMPOSERS- organisms that break down dead organisms & release nutrients back into the ecosystem

15. SCAVENGERS- animals that eat organisms killed by a predator- vultures and opossums

16. HABITAT- The actual place where an organism lives NICHE- An organism’s way of life, all the things it does to survive

17. HABITAT- The actual place where an organism lives Which populations share the same habitat? Niche?

18. Food webs show the interaction of all the types of organisms in an environment. show how energy flows in an ecosystem

19. Ecosystems are made up of…. ABIOTIC FACTORS- nonliving parts of the ecosystem BIOTIC FACTORS- living parts of the ecosystem

20. Organisms need certain biotic and abiotic factors for survival. These flowers need abiotic factors of water, sunlight and the right temperature to grow DEPENDENCE

21. COMPETITION Relationship between species in which they attempt to use the same biotic or abiotic factor 2 plants on the forest floor competing for sunlight Hyena and lion fight over the same animal carcass

22. HABITAT- The actual place where an organism lives How might the hyena and the cheetah compete for a biotic factor? How might the primary consumers compete for an abiotic factor in the African grassland?

23. PREDATION One organism kills and eats another PREY- one that is eaten PREDATOR- one that does the eating

24. Can you name a predator-prey in the food web?

25. PARASITISM Organisms that live in or on another organism and feed on it without immediately killing it The parasite takes its nourishment from the host.

26. Can you name a predator-prey? How do the fox and hawk compete? Can you name the abiotic factors? Can you name the biotic factors? Can you name a producer- consumer?

27. Fish eating algae off a sea turtle shell provides food for fish while cleaning the turtle shell MUTUALISM Cooperative partnership between two species. BOTH SPECIES BENEFIT!

28. Relationship in which one species is helped and the other is neither helped nor harmed COMMENSALISM Remoras and Sharks: remoras attach themselves to sharks & feed on scraps of food left over from the shark’s meals