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13. Ecology

Energy & Matter Flow

TermDefinition
Food chain the pathway of energy transfer through various stages as a result of the feeding patterns of a series of organisms
Food web a diagram that shows the complex feeding relationships between organisms in an ecosystem
Trophic levels one of the steps in a food chain or food pyramid; examples include producers and primary, secondary, and tertiary consumers
biomass total dry mass of all organisms in a given area
Energy pyramid a triangular diagram that shows an ecosystem's loss of energy, which results as energy passes through the ecosystem's food chain
Producer an organism that can make organic molecules from inorganic molecules through photosynthesis or chemosynthesis
Primary consumer an organism that is usually a herbivore, feeding on plants or other photosynthetic/chemosynthetic organisms
Secondary consumer an organism that is a carnivore, specifically feeding on herbivores
Tertiary consumer an organism that is on the top of the food chain, feeding on other carnivores
Omnivore an organism that eats both plants and animals
Carnivore an organism that eats animals
Herbivore an organism that eats only plants
Created by: cfhsbiology
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