ecology 1
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11 terms
Terms | Definitions |
|---|---|
 community | •___________________ is a collection of interacting populations |
| limiting factors | components of the environment that restrict the growth of populations. |
| carrying capacity | # of organisms that can be supported by the resources in an ecosystem |
| abiotic | nonliving parts of ecosystem, such as , moisture, air, salinity, and pH |
| biotic | the living organisms that inhabit the environment, including predators, food sources |
| population growth curves | exhibit growth stage,exponential growth,steady state,decline, extinction |
| symbiosis | is a close and permanent relationship between organisms of two different species |
| mutualism | symbiotic relationship where both species benefit from the relationship |
| commensalism | symbiotic relationship where only one species benefits and other not affected at all |
| parasitism | symbiotic relationship where one species benefit at the expense of the other. |
| pyramid of numbers | is a graphical representation of the numbers of individuals in each population in a food chain |
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