2970953
Description
Flashcards by Nick Barratt , updated more than 1 year ago
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Created by Nick Barratt
almost 9 years ago
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| Question | Answer |
| Producer | An organism capable of producing complex organic compounds demo simple inorganic molecules through the process of photosynthesis (using light energy) or through chemosynthesis (using chemical energy). |
| Consumer | An organism that generally obtains food by feeding on other organisms or organic matter due to the lack of ability to manufacture their own food from inorganic sources. |
| Decomposer | An organism whose ecological function involves the recycling of nutrients by performing the natural process of decomposition as it feeds on dead or decaying organisms. |
| Detritivore | An organism that feeds on detritus or organic waste. |
| Zooplankton | Animal constituent of plankton; mainly small crustaceans and fish larvae. |
| Phytoplankton | Plankton that consists of minute plant and other photosynthetic organisms, including cyanobacteria, diatoms, and dinoflagellates. |
| Carnivore | An animal or plant (particularly insect and invertebrate eating plants) that requires a staple diet consisting mainly or exclusively of animal tissue through predation or scavenging. |
| Herbivore | An animal that consumes herbaceous vegetation. Any animal that feeds chiefly on grass and other plants. |
| Omnivore | An animal that includes both plants and animals in its normal diet. |
| Trophic Level | A position in a food chain or ecological pyramid occupied by a group of organisms with similar feeding mode. |
| Ecosystem | A system that includes all living organisms (biotic factors) in an area as well as its physical environment (abiotic factors) functioning together as a unit. |
| Habitat | The place where an organism or a biological population normally lives or occurs. |
| Agricultural Ecosystem | Ecosystems that are made up largely of domesticated animals and plants used to produce food by mankind. The agricultural ecosystem is achieved by preventing the climax community. |
| Pesticide | A chemical which is used to kill unwanted organisms (such as rats, insects, nematodes, etc). |
| Herbicide | A chemical used to kill or control the growth of plants. Some herbicides (such as synthetic auxins and triazine) selectively kill broad-leaved plants while leaving grass-leaved plants (i.e., cereal crops) unharmed. |
| Insecticide | A chemical used to kill insects. Insecticides are a type of pesticide. |
| Fungicide | An agent that destroys fungi. |
| Biological Control | Control of a (usually nonindigenous) pest by introducing an organism that is a predator, parasite, or pathogen of the pest species in its native environment. Also called biocontrol. |
| Integrated Control System | The harnessing of biological and chemical properties to control 'pests' and pathogens in order to protect an environment, species or the well being of humans. |
| Productivity | The rate at which organic matter is produced as chemical energy through the harnessing of light energy in photosynthesis. |
| Net Productivity | Net Productivity = Gross Productivity - Respiratory Losses |
| Dissipated | A process in which energy is used or lost without accomplishing useful energy transfer to the next trophic level in a food chain. |
| Biological Accumulation | The accumulation within living organisms of toxic substances occurring in the environment. |
| Monoculture | The cultivation or growth of a single crop or organism especially on agricultural or forest land. |
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