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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. It has a shiny body and glows. It serves as food source for land animals.
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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
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Relationships in Ecosystems
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Ecosystem All the living and nonliving things that interact in an area.
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Populations All of the same species in an ecosystem
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Competition All living things compete for
Food Space Competition limits population growth
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Limiting Factors Anything that restricts or controls the number of individuals in a population
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Carrying Capacity The largest number of individuals of one species an ecosystem can support
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Symbiosis Any close relationship between species en.wikipedia.org
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Commensalism A relationship in which one species benefits and the other is neither helped nor harmed Shark & remora Barnacles on whale
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Mutualism A relationship in which both species benefit Pollination
Cleaner fish Lichens: algae + fungus www4.tpgi.com.au
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Parasitism A relationship in which one organisms benefits and the other is harmed Mistletoe Tick
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Predator - Prey Predators are consumers that capture and eat other consumers, called prey
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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.
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Decomposer/Scavenger
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Cooperation Organisms working together toward a common end or purpose
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Additional Terms: Abiotic Biotic Niche Community
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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.
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