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Chapter 3 Vocabulary

27 Points
Due: Wednesday, November 8
Across
Organism that obtains energy by eating only plants.
Animal that consumes the carcasses of other animals.
The network of complex interactions formed by feeding relationships among the various organisms in an ecosystem.
Process by which bacteria convert nitrates into nitrogen gas.
Scientific study of the interactions among organisms and between organisms and their environments.
Organism that is able to capture energy from sunlight or chemicals and use it to produce its own food.
A group of similar organisms that can breed and produce fertile offspring.
Process in which chemical energy is used to produce carbohydrates.
Illustration of the relative amounts of energy or matter found in each trophic level of an ecosystem.
One example of a diverse group of small, swimming animals call zooplankton.
Process where water goes fro a liquid to a gas.
Each step in a food chain or web.
Organism that obtains energy by eating animals.
Primary producers in an aquatic food chain. Algae are an example.
Series of steps in an ecosystem in which organisms transfer energy by eating and by being eaten.
An assemblage of different populations that live together in a defined area.
Down
A group of ecosystems that share similar climates.
Dead matter. Plant and animal remains.
All of the organisms that live in a place together, along with their non-living environment.
Process of converting nitrogen gas into nitrogen compounds that plants can absorb and use.
Total amount of living tissue within a given trophic level.
Process where water is released by plants in the morning, and it evaporates from the surface of the leaves during the day.
Process where water as a gas cools down and moves slower, and thus forms clouds.
The ability to do work.
Physical, or non-living, factor that shapes an ecosystem.
Process where either an artificial step is created to explain what is going on in the environment, or interactions are observed in their natural surroundings.
Group of individuals of the same species found in the same area.
Process where rain water or melted snow flows down the natural slope of the land and into creeks, rivers, brooks, ponds, and lakes.