1. Warm-up: October 6, 2010
A new organism is discovered in the rocky intertidal zone. Which of the following characteristics helps the organism to survive in this particular ocean zone?
It has a hard shell and can cling to surfaces
It gets energy from chemicals in thermal vents.
It has a shiny body and glows.
It serves as food source for land animals.

2. Activator:
Think of a word or phrase that describes “relationship” for each letter of the word. Write this in your notebook. You will refer back to it at the end of the week.
Now share your response with your elbow partner R E L A T I O N S H P

3. Relationships in Ecosystems

4. Ecosystem
All the living and nonliving things that interact in an area.

5. Populations All of the same species in an ecosystem

6. Competition All living things compete for
Food
Space
Competition limits population growth

7. Limiting Factors
Anything that restricts or controls the number of individuals in a population

8. Carrying Capacity
The largest number of individuals of one species an ecosystem can support

9. Symbiosis
Any close relationship between species
en.wikipedia.org

10. Commensalism
A relationship in which one species benefits and the other is neither helped nor harmed
Shark & remora
Barnacles on whale

11. Mutualism A relationship in which both species benefit Pollination
Cleaner fish
Lichens: algae + fungus
www4.tpgi.com.au

12. Parasitism
A relationship in which one organisms benefits and the other is harmed
Mistletoe
Tick

13. Predator - Prey
Predators are consumers that capture and eat other consumers, called prey

14. Decomposer/Scavenger
Decomposers and scavengers break down dead plants and animals.
Scavengers are animals that find dead animals or plants and eat them.
Once a scavenger is done, the decomposers take over, and finish the job. Many kinds of decomposers are microscopic, meaning that they can't be seen without a microscope.

15. Decomposer/Scavenger

16. Cooperation Organisms working together toward a common end or purpose

17. Additional Terms:
Abiotic
Biotic
Niche
Community

18. Closing: Gimmie Five
Students will draw their hand on the back of the sheet of paper they used for their activator, and they will list 5 facts they learned in class today.