| A | B |
|---|
| resources | Something in an ecosystem that is required by an organism. |
| carrying capacity | The largest number of individuals of a particular type that an ecosystem can support. |
| density dependent factors | factor that limits a population more as population density increases |
| density dependent factors | limiting factor that affects all populations in similar ways, regardless of population size, ex: weather |
| population density | The number of individuals in an area of a specific size |
| population | The total number of individuals of the same species that interact with one another. |
| control group | the group in an experiment that is not exposed to the treatment. |
| controlled experiment | a test of the effect of a single variable by changing it while keeping all other variables the same |
| dependent variable | The measurable effect, outcome, or response in which the research is interested. |
| experimental group | in an experiment, the group exposed to the treatment, or independent variable |
| hypothesis | A proposed explanation for an observation based on previous information that is used as a starting point for an experiment. |
| independent variable | The variable that is changed in an experiment. |
| procedure | The steps that are followed in an experiment. |
