Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Pitts Ecology
Ecology Test Revies
| Question | Answer |
|---|---|
| The organisms at the beginning of a food chain | producers |
| An organism that uses energy to produce its own food | autotroph |
| An animal that eats both producers and consumers | omnivore |
| An organism that eats a producers | herbivore or primary consumer |
| An organism that eats a herbivore | carnivore or secondary consumer |
| The process by which bacteria convert nitrogen gas in the air to ammonia | nitrogen fixation |
| The branch of biology dealing with the interactions among organisms and between organisms and their environment | ecology |
| The portion of the Earth that contains living things | biosphere |
| All of the members of a particular species that live in the same area | population |
| The original source of the energy in ecosystems | sun |
| Organisms that obtain nutrients by breaking down dead and decaying plants and animals | decomposers |
| Organisms that cannot make their own food | heterotroph |
| An organism that feeds only on plants | herbivore |
| Interconnected feeding relationships in an ecosystem | food web |
| The repeated movement of water between Earth's surface and the atmosphere | water cycle |
| Symbiotic relationship in which both organisms benefit | mutualism |
| Symbiotic relationship in which one organism benefits and the other is harmed | parasitism |
| Symbiotic relationship in which one organism benefits and the other is not affected | commensalism |
| The average year after year conditions of temperature and precipitation in a region | climate |
| An interaction in which one organism captures and feed on another organism | predation |
| The nonliving factors in an environment (air, water, soil) | abiotic factors |
| The living factors in an environment (plants, animals, fungi) | biotic factors |
| The change in an ecosystem from barren soil to grasses to trees | succession |
| The first organisms to appear during succession | pioneer species |
| Change in an ecosystem when no soil exists (volcano eruption is an example) | primary succession |
| Change in an ecosystem when soil is present (fire and flood are examples) | secondary succession |
| Coal, oil and natural gas | fossil fuels |
| The number of organisms of a species in a given area | population density |
| Causes a population to grow | birth and immigration |
| Causes a population to decline | death and emmigration |
| Factors that have a greater effect on crowded populations (examples are disease, predation, competition) | density dependent factors |
| Factors that have a the same effect if the population is crowded or not (examples are flood or fire) | density independent factors |
| The movement of organisms into a given area from another area | immigration |
| The movement of organisms out of an area | emmigration |
| Any factor that cause population growth to decrease | limiting factor |
| The largest number of individuals an environment can support | carrying capacity |
| Sulfur and nitrogen combine with water | acid rain |
| A chemical that causes ozone depletion | chlorofluorocarbons |
| Wearing away of surface soil by water and wind | soil erosion |
| A group of organisms near extinction | endangered species |
Created by:
Epitts
Popular Biology sets