1. Biology 9/25/13 Mrs. Turgeon “If you don’t have time to do it right, when will you have time to do it over?” – John Wooden DO NOW: In your notes: describe the following relationships: 1. Mutualism 2. Commensalism 3. Parasitism

2. Biology 9/26/13 Mrs. Turgeon “Success comes from knowing that you did your best to become the best that you are capable of becoming.” – John Wooden DO NOW: In your notes, answer: “What is our definition of the control group in a science experiment?” Have your 2.1 “T” Notes out on your desk if you haven’t received credit yet!

3. Biology 9/26/13 Mrs. Turgeon Announcement First science club meeting Tues 10/1 after school Agenda Agenda 1. Take notes on ecology (have your graphic organizer ready if you printed one) 2. Start parasite lab

4. Biology 9/30/13 Mrs. Turgeon “I can accept failure, everyone fails at something. But I can’t accept not trying.” –Michael Jordan –Michael Jordan DO NOW: In your notes: What is the level of organization that represents “all of the living organisms living together in the same area” ?

5. Biology 9/30/13 Mrs. Turgeon Announcement: Please come to the Science Club meeting tomorrow, in room 312 after school! Agenda: 1. Go over ACT quiz 2. Practice graphing in groups

6. PRINCIPLES OF ECOLOGY Chapter 2

7. Organisms & Their Environment Ch. 2, Sec. 1

8. What is Ecology? Ecology = study of interactions between organisms & their environment Ecology = study of interactions between organisms & their environment

9. Disruptions to the environment can ripple throughout the entire ecosystem Disruptions to the environment can ripple throughout the entire ecosystem

10. Biosphere Biosphere = parts of Earth and its atmosphere that support life, from the sky down to the bottom of the ocean Biosphere = parts of Earth and its atmosphere that support life, from the sky down to the bottom of the ocean

11. Biotic Factors = the living parts of an ecosystem Biotic Factors = the living parts of an ecosystem Abiotic Factors = the nonliving parts of an ecosystem (sun, temperature, pH, gasses, water) that are part of an organism’s life Abiotic Factors = the nonliving parts of an ecosystem (sun, temperature, pH, gasses, water) that are part of an organism’s life

12. Levels of Organization 1. Biosphere 1. Biosphere

13. 2. Ecosystem = the biotic & abiotic parts of an environment found in a particular place 2. Ecosystem = the biotic & abiotic parts of an environment found in a particular place –The biosphere is made up of many different ecosystems

14. 3. Communities = all the interacting living organisms in an area, all the different species 3. Communities = all the interacting living organisms in an area, all the different species

15. 4. Populations = all members of the same species living in one place, at one time 4. Populations = all members of the same species living in one place, at one time

16. 5. Organism = the individual organism 5. Organism = the individual organism

17. Organisms in Ecosystems Habitat = the place where an organism lives out its life Habitat = the place where an organism lives out its life Niche = all strategies & adaptations a species uses in its environment; a species’ role Niche = all strategies & adaptations a species uses in its environment; a species’ role –What food they eat –What kind of shelter used –Where they reproduce

18. Having a specific role in an environment helps reduce competition Having a specific role in an environment helps reduce competition

19. Survival Relationships (2 kinds) A. Symbiosis = organisms living closely together; 3 types of symbiosis A. Symbiosis = organisms living closely together; 3 types of symbiosis

20. 1. Mutualism = 2 species of organisms benefit from each other 1. Mutualism = 2 species of organisms benefit from each other

21. 2. Commensalism = one species benefits & the other is neither harmed nor benefited 2. Commensalism = one species benefits & the other is neither harmed nor benefited

22. 3. Parasitism = one species benefits at the expense of another species 3. Parasitism = one species benefits at the expense of another species

23. B. Predation = a predator eats another organism for food B. Predation = a predator eats another organism for food

24. http://www.cstephenmurray.com/onlinequ izes/biology/Ecology/typesofinteractionsex amples.htm http://www.cstephenmurray.com/onlinequ izes/biology/Ecology/typesofinteractionsex amples.htm http://www.cstephenmurray.com/onlinequ izes/biology/Ecology/typesofinteractionsex amples.htm http://www.cstephenmurray.com/onlinequ izes/biology/Ecology/typesofinteractionsex amples.htm

25. Practice Cowbirds lay their eggs in the nests of other birds and allow them to raise their chick usually at the expense of the offspring of the other species. Cowbirds lay their eggs in the nests of other birds and allow them to raise their chick usually at the expense of the offspring of the other species. What would happen to a forest community if the cowbird population increased? What would happen to a forest community if the cowbird population increased?