Words to Know Ecosystem 10. population density 19. symbiosis Habitat 11. immigration 20. mutualism Biotic factor 12. emigration 21.commensalism Abiotic factor 13. limiting factor 22. parasitism Photosynthesis 14. natural selection 23. parasite Species 15. adaptation 24. host Population 16. niche 25. birth/deatrate Community 17. predator Ecology 18. prey
Interactions among living organisms
Adaptations The behaviors and physical characteristics of species that allow them to live successfully in their environment.
Niche An organisms particular role, or how it makes its living.
Competition The struggle between organisms to survive in a habitat with limited resources.
Predation An interaction in which one organism kills and eats another
predator The organism that is doing the killing
Predator Adaptations Adaptations that allow the predator to more easily catch and kill their prey. Ability to see at night Speed Poisonous stings
Prey The organism being killed
Prey Adaptations The development of defense mechanisms helping to protect the prey Warning colors Protective coverings camouflage
Symbiosis Close relationship between two species that benefits at one of the species…. Three types: mutualism, commensalism, parasitism
Mutualism Relationship in which both species benefit
Commensalism Relationship in which one species benefits and the other species is neither helped nor harmed
Parasitism Relationship in which one organism lives on or in another harming that organism
Illustration Quiz Each picture is given with its vocabulary word…..write one sentence why each picture is true.
Ecosystem
Biotic Factors
Mutualism
Commensalism
Natural Selection
Predator
Prey
Energy Flow in Ecosystem
How does this group of Organisms work together?
Energy Roles An organism’s energy role is determined by how it obtains energy and how it interacts with the other living things in its ecosystem. Roles maybe:
Energy Energy first enters most ecosystems as sunlight. Organisms, such as plants, algae and certain microorganisms store it as food energy. http://www.pbs.org/wgbh/nova/nature/photosynthesis.html
Producers
Research Consumers Table Group # 2 (middle tables) Define Explain its position in an ecosystem 6 examples of consumer What makes them important How do they work 6 other details you can find
Research Decomposers Table group # 3 (by the window) Define Explain its position in an ecosystem 6 examples of decomposer What makes them important How do they work 6 other details you can find