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Ecology Review

Ecology Review. I. Ecology is the study of interactions between organisms and their environment. There are two parts of an environment : Biotic - all of the organisms that live together and interact with one another.- Living factors

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Ecology Review

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  1. Ecology Review

  2. I. Ecologyis the study of interactions between organisms and their environment. There are two parts of an environment : Biotic- all of the organisms that live together and interact with one another.- Living factors Abiotic- part of the environment that includes all of the physical, nonliving, factors.

  3. Organisms interact with one another Symbiotic Relationships- LONG term relationships between two or more organisms • Mutualism (good, good relationship)- Both organisms benefit. • Commensalism (good, don’t care relationship)- One organism benefits and the other is unaffected. • Parasitism (good, bad relationship)- One organism benefits and the other is harmed.

  4. Name the type of Symbiotic relationship.

  5. All Living Things Obtain and use Energy • Producers (Autotrophs)- use sunlight directly to make their own food.- PHOTOSYNTHESIS!!! • Consumers (Heterotrophs)- Organisms that eat producers or other organisms for energy. • Carnivores- Eat Meat • Herbivores- Eat Producers • Omnivores- Eat both producers and consumers • Scavengers- Eat the remains of dead animals • Decomposers- Break down the remains of dead organisms and recycle nutrients back into the soil

  6. Energy Webs also show the importance of Predator/ Prey Relationships

  7. Energy Pyramid Energy is lost as you move up the pyramid. PRODUCERS hold the most energy in their tissues and always located at the bottom of the pyramid.

  8. Primary Succession- When a small community of living things begin to live in an area that did not previously contain plants or animals.

  9. Secondary Succession- When an existing community is destroyed and the original plant community regrows. A disturbance is any event that interrupts life in an ecosystem. Examples: A forest fire, cutting down trees, animals grazing in a field, farming.

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