Chapter 1 Populations and Communitites

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Can you name the Chapter 1 Key Terms?

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

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