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Ecology Unit Vocab
This is the key vocab from the Ecology Unit
| Question | Answer |
|---|---|
| acid rain | rain with an acidic Ph caused by burning fossil fuels...destroys life in lakes/rivers |
| autotroph | self-feeder; any organism that carries out photosynthesis...a producer |
| bacteria | a decomposer that helps to break down dead material and recycle it |
| biodiversity | having a wide variety of organisms living in an ecosystem. Biodiversity builds the stability of an ecosystem. |
| carnivore | eats meat |
| carrying capacity | the largest number of organisms in a population that an environment can support |
| competition | fight to obtain food, shelter and mates |
| consumer | an organism that must eat another organism |
| decomposer | an organism (bacteria & fungi) that break down dead material and recycle it. |
| deforestation | the cutting down of trees to make room for buildings or grazing land. |
| ecology | the study of the interaction between organisms and their environment |
| ecosystem | all the organisms that live in an environment with their non-living environment |
| energy pyramid | the amount of enery available decreases as you move up the food chain. |
| extinction | when all organisms of a particular species are dead |
| food web | all the possible interactions among the various organisms in an ecosystem (who eats who) |
| fossil fuels | coal, oil and gas...non-renewable resources that cause damage to the environment when burned |
| fungi | help the ecosystem by working as decomposers |
| global warming | increase in earth's temperature as a result of an increase in carbon dioxide in the atmosphere |
| herbivore | an organism that eats plants |
| heterotroph | an organisms that consumes another organism to obtain energy |
| industrialization | the use of factories, etc. to increase human comfort and convenience |
| limiting factors | the factors that prevent a population from growing out of control (space, food, predators, etc.) |
| ozone layer | the layer of 03 in the atmosphere that protects Earth from ultraviolet rays |
| parasite/host | a symbiotic relationship where the parasite hurts the host (lice, tick, etc.) |
| pollution | placing harmful materials into the biosphere |
| population growth | the general pattern of growth of an organism. they start by increasing quickly, but then level off at the carrying capacity. |
| predator/prey | relationship between organisms where one eats the other |
| producer | a plant; something that uses photosynthesis to make its own food; autotroph |
| recycle | to break down used material into something that is usable again. |
| scavenger | something that eats dead organisms |
| climax community | The most stable community that a climate can support. It is the most biodiverse and will remain unless acted upon by weather or man. |
| invasive species | Species living in an area where they did not originate. They have no predators and therefore outcompete the native species reducing biodiversity. |
Created by:
mbiata@rhnet.org