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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. - PowerPoint PPT Presentation
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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?
A. It has a hard shell and can cling to surfaces B. It gets energy from chemicals in thermal vents.C. It has a shiny body and glows. D. It serves as food source for land animals.
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
RELATIONSHIPS
Relationships in Ecosystems
Ecosystem
• All the living and nonliving things that interact in an area.
Populations
• All of the same species in an ecosystem
www.nkf-mt.org.uk
www.intrasystems.gr
Competition
• All living things compete for– Food– Space
• Competition limits population growth
www.opim.wharton.upenn.edu
Limiting Factors
• Anything that restricts or controls the number of individuals in a population
www.bahamascommerce.com
Carrying Capacity
• The largest number of individuals of one species an ecosystem can support
www.wwt.org.uk
Commensalism
• A relationship in which one species benefits and the other is neither helped nor harmed
Barnacles on whaleShark & remora
www.community.webshots.com www.cbu.edu
Mutualism
• A relationship in which both species benefit
Cleaner fish
Pollination
Lichens: algae + fungus
www.biology.clc.uc.edu
www.orn.mpg.de www4.tpgi.com.au
Parasitism
• A relationship in which one organisms benefits and the other is harmed
TickMistletoe
www.oznet.ksu.edu www.wcosf.org
Predator - Prey
• Predators are consumers that capture and eat other consumers, called prey
http://www.uga.edu
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.
Cooperation
• Organisms working together toward a common end or purpose
http://forger.ca/ http://special.newsroom.msu.edu
Additional Terms:
• Abiotic• Biotic• Niche• Community
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.
