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Mr. Wade

Use Vocabulary Words from Chapter 2

Photic Zone What is a symbiotic relasionship in wheich one species benefits and the other species is neither harmed nor benefited?
Scavengers What is the place where an organism lives out its life?
Ecology What is a symbiotic relationship in which one organism derives benefit at the expense of the other organism?
Ecosystem What is a group of organisms of one species that interbreed and live in the same place at the same time?
Decomposers What is the protion of the marine biome that is shallow enough for sunlight to pernetrate?
Biosphere What are the colonization of new sites like these by communities of organisms?
Heterotrophs What are small organisms that live in the water of the photic zone?
Secondary Succession What is a simple model that scientist use to show how matter and energy mover through an ecosystem?
Niche What is a collection of interacting population?
Trophic level All theliving organisms that inhabit an environment are __________.
Food Chain What is the role and position a species has in its environment--- how it meets its needs for food and shelter, how it survives, and how it reproduces?
Succession What are organisms that use enerty from the sun or energy stored in chemical compunds to manufacture their own nutrients?
Plankton What is a coastal body of water, partially surrounded by land, in which feshwater and saltwater mix?
Primary Succession What is an organisms that cannot make their own food and must feed on other organisms?
Biotic Factors What is the portion of Earth that supports life?
Population What is a stable, mature community that undergoes little or no change in species?
Abiotic Factors What refers to the sequence of community changes that take place after a community is disrupted by natural disaters or human actions?
Commensalism What is a symbiotic relationship which both species benefit?
Parasitism What is the portion of the shoreline that lies between the high and low tide lines?
Habitat What is the scientific study of interactions among organisms and their enviornments?
Climax Comunity Waht are the orderly, natural changes and species replacements that take place in the comunities of an ecosystem?
Community What is the relationship in which there is a close and permanent association among organisms of different species?
Intertidal Zone the nonlinving partsof an organism's environment are ____________.
Symbiosis Each organism in a food chain represents a feeding step or ___________ _______________.
Autotrophs What are organisms that break down and absorb nutrients from dead organisms?
Estuary What is made up of the interactions among the populations in a community and the community's physical surroundings or abiotic factors
Aphotic Zone What are animals that do not kill their own food but feed off dead animals?
Mutualism What is the deeper water that never receives sunlight?

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