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Ecosystems
Test #1
19
Science
5th Grade
10/05/2012

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Term
Ecosystem
Definition
all the living and nonliving things in an area interacting with each other
Term
Ecology
Definition
the study of living things and their environment
Term
Abiotic Factor
Definition
a nonliving part of an ecosystem, including water, minerals, sinlight, air, climate, soil, and temperature.
Term
Biotic Factor
Definition
A living part of an ecosystem, including animals, plants, fungo, protists, and bacteria
Term
Population
Definition
all the organisms of one species that live in an area at the same time.
Term
Community
Definition
all the populations living in an area
Term
habitat
Definition
the area in which an organism lives
Term
niche
Definition
the role an organism has in its ecosystem
Term
organism
Definition
a living thing
Term
producer
Definition
organsim that produces oxygen and food that animals need (plants)
Term
Primary Consumer
Definition
Organisms that eat producers
Term
Secondary Consumers
Definition
Organisms that eat other consumers
Term
Herbivore
Definition
Animals that eat only plants
Term
Carnivore
Definition
Animals that eat other animals
Term
Ominvore
Definition
Animals that eat plants and animals
Term
Decomposer
Definition
organism that breaks down dead plants and animals into useful things like minerals that enrich the soil
Term
Scavenger
Definition
Animals that eat dead plants or animals
Term
Fungi
Definition
plantlike organisms that live by decomposing and absorbing the living or dead organic material in which they grow
Term
Bacteria
Definition
microorganisms made up of a single cell. The most abundant life form on Earth and are found in all lving things and in all of the Earth's environments. Bacteria usually live off of other organisms, and in some cases cause disease.
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