Words to Know1. Ecosystem 10. population density 19.

symbiosis2. Habitat 11. immigration 20. mutualism3. Biotic factor 12. emigration

21.commensalism4. Abiotic factor 13. limiting factor 22. parasitism5. Photosynthesis 14. natural selection 23. parasite6. Species 15. adaptation 24. host7. Population 16. niche 25.

birth/deatrate8. Community 17. predator9. 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 nightSpeedPoisonous stings

PreyThe organism being killed

Prey Adaptations

The development of defense mechanisms helping to protect the prey

Warning colorsProtective coveringscamouflage

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 RolesAn 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

Links

http://www.sheppardsoftware.com/content/animals/kidscorner/games/producersconsumersgame.htm

Research Consumers

Table Group # 2(middle tables)

DefineExplain its position in an ecosystem6 examples of consumerWhat makes them importantHow do they work6 other details you can find

ResearchDecomposers

Table group # 3(by the window)

DefineExplain its position in an ecosystem6 examples of decomposerWhat makes them importantHow do they work6 other details you can find