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Living Things and the Environment
Populations
Interactions Among Living Things
Level of Organization
Potpourri
100
Water, sunlight, oxygen, temperature, and soil
What is an abiotic factor?
100
counts the number of births in a population over a certain amount of time
What is birth rate?
100
The organism that benefits in a parasitic relationship.
What is a parasite?
100
All of the abiotic and biotic factors in a specific area
What is ecosystem?
100
A relationship in which both species benefit
What is mutualistic?
200
the living, or once living parts of a habitat
What is a biotic factor?
200
counts the number of deaths in a population over a certain amount of time
What is death rate?
200
An organism's role in its habitat
What is a niche?
200
All of the prairie dogs in a prairie dog town are this
What is a population?
200
means moving into a poulation
What is immigration?
300
All of the prairie dogs living in a specific area
What is a population?
300
measure of all of the individuals in one area at one time
What is population density?
300
An interaction in which one organism kills another for food or nutrients.
What is predation?
300
Populations of prairie dogs, grass, hawks, and snakes are this.
What is a community?
300
something in the environment that keeps a population from growing or makes the population smaller
What is a limiting factor?
400
All the living things that interact in a specific environment
What is a community?
400
the largest population that an area can support
What is carrying capacity?
400
Organisms have adaptations that help them avoid becoming this tasty treat for predators.
What is prey?
400
A living thing
What is an organism?
400
Limiting factors include these things
What are space, climate, food, and water?
500
The four levels of an ecosystem from smallest to largest
What is organism, population, community, ecosystem
500
mean leaving a population
What is emigration?
500
Leech is to parasite; as human is to this.
What is host?
500
A group of organisms that can mate with each other and produce offspring
What is a species?
500
characteristics that allow organisms to live successfully
What is an adaptation?