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Chapter 3

Terms in this set (19)

Biosphere
The total living things on earth
Endemic
Species that occur nowhere else
Niche
A species role in the community
R-selected
Species that produce many young
Mutation
Accidental changes in the DNA of an organism
Specialists
Organisms with very specific requirements
Ecotourism
Visiting natural areas for recreation
Demographers
Scientists who study human populations
Species
A particular type of organism
Evolution
A change in an organism over time
Biodiversity
The variety of life across the planet
K-selected
Species that devotes a lot of time raising young
Adaption
Changes in a trait to promote success
Ecology
Scientific study of the distribution of organisms
Emigration
People who leave a country for another
Carrying capacity
Maximum population size of a species
Community
All the populations living in an area
Habitat
The environment in which a species lives
Ecosystem
Made up of living and non living things
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