Chapter 1 Ecology
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Created by:
HWrzesinski on April 18, 2012
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17 terms
Terms | Definitions |
|---|---|
 birth rate | the number of births per 1,000 individuals for a given time period |
| death rate | the number of deaths per 1,000 individual sfor a given time period |
| emigrate | leaving a population |
| limiting factors | environmental factor that causes a population to stop growing |
| adaptations | behaviors and physical characteristics |
| mutualism | a relationship in which both species benefit |
| parasitism | a relationship in which 1 benefits and 1 does not |
| commensalism | a relationship in which one species benefits and the other is not harmed |
| symbiosis | any relationship in which 2 species live closely together |
| predation | an interaction in which 1 organism kills another for food and nutrients |
| competition | struggle between organisms to survive |
| abiotic factor | nonliving parts of an organisms habitat |
| biotic factor | living or once living of an organism's habitat |
| Give examples of limiting factors | weather conditions, space, water, food |
| host | an organism that a parasite lives with in or on |
| what is the main way that a population can increase in size? | birth rate |
| name 3 things that an organism needs to live, grow, and reproduce | food water shelter |
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