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33 Cards in this Set
- Front
- Back
- 3rd side (hint)
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abotic factor |
nonliving components of an ecosystem
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a = not |
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biodiversity |
sum total of the variety of organisms in a biosphere |
bio = life
diverse = different |
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biogeochemical |
cycles that move resources through the biosphere
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bio = life |
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biomass |
the total living mass in an ecosystem |
bio = life |
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biome |
particular physical environments containing characteristics of plants and animals |
bio = life |
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biotic factor |
living components in an ecosystem |
bio = life
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carnivore |
consumes flesh |
carn = meat |
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carrying capacity |
number at which the environment can support a particular species
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commensalism |
one organism benefits and one is unaffected |
alism = interaction |
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competition |
struggle to obtain the same resources or mates at the same time |
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consumer |
organisms that rely on other organisms for their energy and food supply |
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decomposer |
breaks down small particles of organic matter to reduce chemical compounds (bacteria) |
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detitivore |
feeds on dead plants and animals (crabs, earthwoms) |
ivore = eater |
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ecology
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interrelationships of plants and animals in their environment
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endangered species
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organisms at risk of becoming extinct
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food chain |
series of steps in which organisms transfer energy by eating and being eaten |
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food web |
complex feeding relationships |
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global warming |
result of increased greenhouse gasses |
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herbivore |
consumes plants |
ivore = eater |
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human activity |
main source of environmental change on earth
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limiting factor |
causes population growth to decrease
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mutualism |
both organisms benefit
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alism = interaction mutual = both |
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omnivore |
consumes both plants and flesh |
ivore = eater |
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parisitism |
one organism is harmed, but usually not killed, and the other benefits |
ism = interaction |
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predation |
interaction when one organism captures and feeds on another |
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primary succession |
ecological changes that occur over time, after a volcano errupts |
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producers |
capture sunlight to make chemical energy |
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secondary succession |
ecological changes that occur over time, after a fire in a forrest |
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symbiosis |
direct interactive relationship between two organisms |
sym = same |
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ten percent |
amount of energy transferred to each trophic level |
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trophic levels |
shows steps in food web & food chain |
not rain forest levels! |
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niche |
the role or job an organisms plays in an ecosystem |
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competetive exclusion principle |
two species can occupy the same niche at the same time in the same environment, one species will die or move out |
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