| A | B |
|---|
| Biome | a large area of the earth that has similar ecosystems and weather |
| Biosphere | the total area of the earth that contains and supports life |
| Camouflage | colors or patterns on an animal that help them hide in their surroundings |
| Canopy | the tops of forest trees |
| carrying capacity | the largest population that can be supported by an ecosystem |
| commensalism | a symbiotic relationship in which one organism benefits and the other is not affected |
| competition | when organism try to use the same resources |
| density-dependent factor | factors related to the size of a population that affects the population growth |
| density-independent factor | factors unrelated to population size that affect population growth |
| disturbance | a large change in a community |
| ecology | the study of the interactions of living things and nonliving things in an environment |
| emigrate | to leave a population |
| growth rate | the amount by which a populations size changes in a given time |
| host | an organism that is food for a parasite |
| immigrate | to move into a population |
| interact | to act upon or influence something |
| interdependent | having to rely on each other |
| mutualism | a symbiotic relationship in which both organisms benefit |
| parasitism | a symbiotic relationship where one organism fees off another and harms the organism. |
| population density | the number of individuals in a population in a particular area |
| predation | a relationship in which one species eats another species |
| primary succession | changes in a lifeless environment that creates a community |
| sample | a part that represents an entire population |
| secondary succession | the changes in a community as it recovers from a disturbance |
| stability | the ability of a community to resist change |
| succession | the process of ecological change in a community |
| symbiosis | a relationship in which two different species live in close association |
| toxic | poisonous |
| trophic structure | the feeding relationships between species in a community |
| vegetation | the plant life in an area |
