Chapter 1 Populations and Communitites

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Can you name the Chapter 1 Key Terms?

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DefinitionTerm
All the different populations that live together in an area
Behaviors and physical characteristics that allow organisms to live successfully in their environments
A living thing
Organism that kills other organisms for food
The study of how organisms interact with each other and with their environment
Leaving a population
All the members of one species living in a particular area
Process in which adaptations become more common in a species
A symbiotic relationship in which both species benefit
The role of an organism in its habitat
Organism that is harmed in a parasitic relationship
The largest population that an area can support
An environment that provides the things a specific organism needs to live, grow, and reproduce
If death rate > birth rate, population size will _____. (increase or decrease)
DefinitionTerm
A symbiotic relationship in which one species benefits and the other species is neither helped nor harmed
An interaction in which one organism kills another for food
The nonliving parts of a habitat
Moving into a population
The living parts of a habitat
If birth rate > death rate, population size will _____. (increase or decrease)
A group of organisms that can mate with each other and produce offspring that can also mate and reproduce
The struggle between organisms to survive as they attempt to use the same limited resources
Organism that is killed and eaten as food
A symbiotic relationship in which one organism benefits and the other is harmed
Organism that benefits in a parasitic relationship
An environmental factor that causes a population to stop growing or decrease in size
The community of organisms that live in a particular area, along with their nonliving environment
Any relationship in which two species live closely together and at least one of the species benefits

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