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Chapter 3

Food Chains & Webs

TermDefinition
Ecosystem a system consisting of the interactions that occur between the living and non living things in that area
Food Chain the movement of food energy from one organism to another
Producers organisms that get their energy directly from the sun
Consumer any animal that eats to live - these cannot make their own food
Decomposer a special group of consumers - that breaks down dead or decaying plant and animal material
Herbivores consumer that eats only plants
Primary Consumers herbivores that eat plants; they are the first consumers in a food chain
Abiotic the nonliving parts of an ecosystem
Biome an area with similar climate and ecosystems
Secondary Consumers Carnivores that eat herbivores (primary consumers)
Tertiary Consumers Carnivores that eat secondary consumers (carnivores)
Omnivores a consumer that eats both plants and animals
Biotic the living parts of an ecosystem
Carnivore Consumers that eat only animals
Food Webs a Group of overlapping or connected food chains
Energy Transfer the transfer of energy from one object or material to another or one form to another
Niche the role an organism plays in its ecosystem
Population all of the interacting members of a species in a single area
Created by: jackie_mulkey