Ecosystems-Food Chains-Food Webs

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Abiotic
nonliving parts of an ecosystem
Biotic
living parts of an ecosystem
Ecosystem
the interactions among living and non-living things in an environment.
niche
the role of an organism in an ecosystem.
invasive species
a specific classification of a plant or animal that is not native to an ecosystem.
food chain
the path that energy and nutrients follow in an ecosystem.
food web
the overlapping food chains in an ecosystem
species
a group of similar organisms that can reproduce more of their own kind.
Producers
an organism that uses the energy of sunlight to make sugar and oxygen.
Consumers
Organisms that cannot make their own food
Herbivores
Consumers that eat only plants
Carnivores
Consumers that eat only other animals.
Omnivores
Consumers that eat both plants and other animals
Decomposers
Organisms that break down dead or decaying plant and animal material.
Habitat
The place in an ecosystem where an organism lives
Predator
An animal that hunts, kills and eats other animals.
Prey
An animal that is hunted and killed by another animal for food.
Interdependence
when the living and nonliving factors in an ecosystem rely on each other for survival.
Energy Pyramid
A model that shows the flow of energy in a community. Energy decreases as you move from the bottom level to the top level.
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