Download Ecosystem Vocabulary

Ecosystem Vocabulary
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New Word: Ecology
Definition: The study of the relationship between organisms and their
environment
New Word: Ecosystem
Definition: All the living and non-living components of an
environment
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New Word: Habitat
Definition: Place where an organism lives
New Word: Succession
Definition: The progression of species replacement is called
succession.
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Ecosystem Vocabulary
New Word: Primary succession
Definition: Succession which takes place where life did not previously
exist. Ex- a new volcanic island being formed.
New Word: Secondary succession
Definition: Succession that occurs in areas where there has been
previous growth. Ex. A clear cut forest.
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New Word: Pioneer species
Definition: The first organisms to live in a new habitat. These
organisms tend to be small fast growing plant species.
New Word: producers
Definition: Organisms that obtain their energy rich molecules (food)
from an outside source like the sun.
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Ecosystem Vocabulary
New Word: Consumers
Definition: Organisms that cannot make their own energy rich
molecules (food).
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New Word: Decomposers
Definition: Decomposers break down molecules in dead organisms.
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New Word: Trophic levels
Definition: Trophic level indicates the organisms position in energy
transfer.
New Word: Photosynthesis
Definition: The process of converting CO2, water and sunlight to
oxygen and sugar.
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Ecosystem Vocabulary
New Word: Cellular respiration
Definition: The process of taking energy rich molecules such as sugar
and converting it to usable energy.
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New Word: Biogeochemical cycle
Definition: A pathway forms when a substance enters living organisms
such as trees from the atmosphere, water, or soil; stays for a time in the
living organism; then returns to the nonliving environment.
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New Word: Interdependence
New Word:
Definition: All organisms in an ecosystem are linked together in a network
Definition:
of interactions.
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Ecosystem Vocabulary