| A | B |
| 1. Biome 2. Ecosystem 3. Community 4. Population 5. Organism | List the five levels of organization for an environment in order |
| Abiotic | Non-living parts of an ecosystem |
| Biotic | Living parts of an ecosystem |
| Food chain | Pathway which energy follows from producer to consumer |
| Producer | Organism that is capable of making its own food |
| Consumer | Organism that relies on producers as a food source |
| Predator | One that captures, kills, and consumes another |
| Prey | One that us captured, killed and consumed by another |
| Biotic potential | Ability of an ecosystem to maintain life |
| Carrying capacity | Number of individuals of a species that an ecosystem can support |
| Succession | Sequential replacement of populations in an ecosystem |
| Biome | Geographic area with characteristic plants, animals,& climate |
| Ecosystem | All the biotic and abiotic parts of an environment |
| Ecology | Study of organisms and their environment |
| Biosphere | Area on and around earth where life exists |
| Community | All the populations in an area |
| Population | All the members of a species in an area |
| Species | Group of organisms capable of producing fertile offspring in the natural environment |
| Habitat | Physical area where an organism lives |
| Niche | The way of life of a species, the role the species plays in its ecosystem |
| Climate | The amount of rain fall and temperature in an area |
| Immigration | Movement of individuals into a population |
| Emigration | Movement of individuals out of a population |
| Herbivore | Animals that eat only plants |
| Carnivore | Animals that eat only other animals |
| Omnivore | Animals that eat both plants and animals |
| heterotroph | an organism that obtains energy by feeding on other organisms` |
| autotroph | an organism that makes its own energy using abiotic factors |
| primary consumer | Organisims that eat autotrophs. these organisms are called herbivores |
| tertiary consumer | A carnivore that it at the top most level of the food chain and feeds on secondary consumers. |
| secondary consumer | Organisms that get energy from primary consumers. they're carnivores and omnivores. |
| producer | organisms that makes own energy through photosynthesis or chemosynthesis --autotroph |
| consumer | Heterotrophs that must get food from an outside source |
| saprotroph | Organisms that invade the tissues of other organisms (usually dead) digest and then absorb nutrient. for example molds and bacteria |
| decomposer | organisms that break down wastes and dead organisms and return raw materials to the environment |
| bio | affix meaning "life" |
| a | affix meaning "not/non/one" |
| vore | affix meaning "one that eats" |
| sym | affix meaning "with or together" |
| biosis | affix meaning "mode of life" |
| troph | affix meaning " nourishment, nutrient material, or the acquisition of nourishment" |
| an | affix meaning "not/non/one" |
| eco | affix meaning "environment" |
| omni | affix meaning "all" |
| Predator | One that captures, kills, and consumes another |
| Prey | One that us captured, killed and consumed by another |
| Biosphere | Area on and around earth where life exists |
| Herbivore | Animals that eat only plants |
| Carnivore | Animals that eat only other animals |
| Omnivore | Animals that eat both plants and animals |
| diversity | a variety of organisms |
| consumer | animals that eat other animals as food |
| mutualism | both organisms benefit from their association |
| commensalism | one organism benefits, the other is not affected |
| parasitism | one organism benefits, the other is harmed |
| competition | two or more organisms want (and fight for) the same resource (like water) |
| host | organism that is harmed in a parasitic relationship |
| symbiosis | close, long term relationship between two different types of organisms |
| DETRITIVORE | heterotrophs that obtain nutrients by consuming detritus (dead organic materials) |
| scavenger | animals that consume dead organisms that have died from causes other than predation or have been killed by other predators |
| detritivore | organisms which feed on dead or decaying organic matter |
| keystone species | a specific organism that is a major contributor to its ecosystem |
| carrion | decaying flesh |
| caro | affix meaning "meat" |