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Ecosystems
Science flash cards
16
Science
9th Grade
05/26/2020

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Term
Abiotic
Definition
physical rather than biological; not derived from living organisms.
Term
Biotic
Definition
relating to or resulting from living things, especially in their ecological relations.
Term
Community
Definition
a group of actually or potentially interacting species living in the same place
Term
Competition
Definition
the struggle between two organisms for the same resources within an environment.
Term
Consumer
Definition
Consumers are unable to make their own energy, and instead rely on the consumption and digestion of producers or other consumers, or both, to survive.
Term
Decomposer
Definition
an organism that decomposes, or breaks down, organic material such as the remains of dead organisms
Term
Ecosystem
Definition
a community of living organisms in conjunction with the nonliving components of their environment, interacting as a system. These biotic and abiotic components are linked together through nutrient cycles and energy flows.
Term
Food web
Definition
the natural interconnection of food chains and a graphical representation (usually an image) of what-eats-what in an ecological community.
Term
Habitat
Definition
an ecological or environmental area that is inhabited by a particular species of animal, plant or other type of organism.
Term
Niche
Definition
describing the relational position of a species or population in an ecosystem.
Term
Parasitism
Definition
symbiotic relationship between species, where one organism, the parasite, lives on or in another organism, the host, causing it some harm, and is adapted structurally to this way of life.
Term
population
Definition
A group of organisms of the same species who live in the same area at the same time.
Term
producer
Definition
organisms that create food from inorganic matter.
Term
Species
Definition
a group of interbreeding organisms that do not ordinarily breed with members of other groups.
Term
symbiosis
Definition
a close ecological relationship between the individuals of two (or more) different species.
Term
Trophic level
Definition
level is the group of organisms within an ecosystem which occupy the same level in a food chain.
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