Term
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Definition
the non-living things in
an organisms environment |
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Term
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Definition
a group of interacting populations
that occupy the same geographic
area at the same time |
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Term
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Definition
the total mass of living matter
at each trophic level |
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Term
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Definition
a large group of ecosystems that share
the same climate and have similar
types of communities |
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Term
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Definition
the portion of the earth
that supports life |
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Term
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Definition
the living factors in
an organisms environment |
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Term
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Definition
scientific study of all the interrelationships between organisms and the environment. |
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Term
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Definition
a biological community and all the
abiotic factors that affect it. |
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Term
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Definition
area where organisms live |
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Term
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Definition
a heterotroph that only eats plants |
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Term
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Definition
an organism that gets its energy by
consuming other organisms |
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Term
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Definition
anything that has mass
and takes up space |
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Term
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Definition
the role or position that an organism
has in its environment |
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Term
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Definition
a chemical substance that an organism
must obtain from its environment to
sustain life and under go life processes |
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Term
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Definition
individual organisms of a single species
that share the same geographic
location at the same time |
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Term
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Definition
an organism that gets its energy
requirement by consuming other
organisms |
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Term
biogeochemical cycle
(bio geo chemical)
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Definition
the exchange of matter
through the biosphere |
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Term
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Definition
heterotrophs that prey
on other heterotrophs |
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Term
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Definition
a relationship which one organism
benefits and the other organism is
neither helped nor harmed |
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Term
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Definition
organisms in the soil convert
ammonia into nitrogen compounds
that can be used by plants |
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Term
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Definition
an animal which feeds on dead
organic material, returning nutrients
to the soil, air, and water. |
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Term
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Definition
a simple model that shows how energy
flows through an ecosystem |
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Term
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Definition
a model representing the many
interconnected food chains and
pathways in which energy flows
through a group of organisms |
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Term
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Definition
the relationship between two or more
organisms that live closely together and
benefit from each other |
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Term
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Definition
the process of capture and conversion
of nitrogen into a form
that is usable by plants. |
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Term
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Definition
organisms that eat both
plants and animals |
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Term
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Definition
a symbiotic relationship in which one
organism benefits at the expense of the
other organism |
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Term
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Definition
the act of one organism pursuing and
consuming another organism for food. |
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Term
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Definition
the close relationship that exists when
two or more species live closely and
benefit each other |
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Term
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Definition
each step in a food chain or food web |
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