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Ecosystem Everything is Connected
Chapter 4
20
Science
12th Grade
11/05/2013

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Term
Ecosystem
Definition
All organisms living in an area with their physical environment.
Term
Biotic Factors
Definition
Living and once living things in the environment.
Term
Abiotic Factors
Definition
Non-living parts of an ecosystem.
Term
Organism
Definition
Is an individual living thing.
Term
Species
Definition
It is a group that can mate to produce fertile offspring.
Term
Population
Definition
All the members of the same species that live in the same place at the same time.
Term
Habitat
Definition
The place an organism lives.
Term
Natural Selection
Definition
To describe the survival and reproduction of organisms with particular traits.
Term
Evolution
Definition
The genetic characteristics of a population from one generation to the next.
Term
Adaption
Definition
A trait that is inherited that increases a species chance of survival.
Term
Artificial Selection
Definition
The selective breeding of organisms by humans for specific characteristics.
Term
Resistance
Definition
Is the ability of one or more organisms to tolerate particular chemical designed to kill it.
Term
Archaebacteria
Definition
Are often found in extreme place such as springs.
Term
Eubacteria
Definition
are very common and can be found in soil and animal bodies.
Term
Fungus
Definition
It is an organism whose cells have nuclei and cell walls.
Term
Protists
Definition
They are a group of one celled organisms and their many-celled relatives.
Term
Gymnosperms
Definition
Woody plants that produce seeds, but their seeds are not enclosed in fruits.
Term
Angiosperms
Definition
Flowering plants that produce seeds in fruits.
Term
Vertebrates
Definition
Animals that have back bones.
Term
Invertebrates
Definition
Animals that have a lack of a back bone.
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