GB Wilson - 6th Gr Ecosystems
Terms in this set (24)
collection of all the organisms that live in a particular place, together with their nonliving environment
All the organisms that are part of the environment.
Nonliving chemical and physical factors in the environment.
a group of organisms of the same species populating a given area
(ecology) a group of interdependent organisms inhabiting the same region and interacting with each other
organisms that make their own food; ie: plants
an organism that obtains energy and nutrients by feeding on other organisms or their remains.
organisms that break down wastes and dead organisms and return raw materials to the environment
single-celled organisms that lack a nucleus; prokaryotes
a group of organisms that do not move and absorb their nutrients from organic materials in the environement, cell walls are made of chitin
an organism that lives on or in a host and causes harm to the host
animal that hunts and eats other animals
animal hunted or caught for food
the living together in mutually helpful association of two dissimilar organisms; both organisms benefit
the struggle between organisms to survive in a habitat with limited resources
undesirable state of the natural environment being contaminated with harmful substances as a consequence of human activities
to use up the supply of a resource
When all organisms of a single species die.
the role, job, that something has in an ecosystem; a niche
the ecological "job and address" of a plant or animal in nature.
a long-term change in weather patterns in a given area
The consequences for the environment of human actions (deforestation, oil spills, etc.) and natural occurrences (floods, earthquakes, volcanoes, etc.)
the place or set of environmental conditions in which a particular organism lives
A complex diagram representing the many energy pathways in an ecosystem
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