Chapter 1 Populations and Communitites

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Can you name the Chapter 1 Key Terms?

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

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