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drs-ecol-56
basic ecology terms
| Term | Definition | Examples |
|---|---|---|
| ecology | study of living things and their interactions with each other and environment | *studying the spread of an invasive species in a new environment *studying the relationship between availability of a particular resource and the size of a population |
| Organism | A living thing | bacteria, humans, animals, plants |
| habitat | An environment that provides the things a specific organism needs to live, grow, and reproduce | Forest, prairie, ocean |
| Biotic factor | A living or once living part of a organism's habitat | ferrets, eagles, worms, bacteria, prairie dog scat, owl pellets, decomposing plant matter |
| Abiotic factor | A nonliving part of an organism's habitat | sunlight, soil, temperature, oxygen, water |
| Species | A group of similar organisms that can mate with each other and produce offspring that can also mate and reproduce | humans, dogs, cats,black-tailed prairie dog |
| population | All the members of one species living in the same area | prairie dog town, field of flowers |
| community | All the different populations that live together in a particular area | The prairie,for instance includes prairie dogs, hawks, snakes, and grasses. The dessert consists of rabbits, coyotes, snakes, birds, mice, and such plants as sahuaro cactus, ocotillo, creosote bush, etc. |
| ecosystem | The community of organisms that live in a particular area, along with their nonliving environment | deserts, oceans, ponds,forests, prairie |
| Food chain | A series of events in an ecosystem in which organisms transfer energy by eating and by being eaten | Grassland Biome- grass-> grasshopper-> rat-> snake-> hawk Pond Biome- algae-> mosquito larva-> dragonfly larva-> fish-> caccoon |
| Producer (Primary) | An organism that can make its own food | Grassland Biome- grass Pond Biome- algae |
| Primary Consumer | An animal that eats grass and other green plants in a food chain; an herbivore | Grassland Biome- grasshopper Ocean Biome- zooplankton |
| Secondary Consumer | An animal that feeds on smaller plant-eating animals in a food chain | Pond Biome- dragonfly larva Ocean Biome- fish |
| Tertiary Consumer | An animal that feeds on secondary consumers in a food chain | Pond Biome- fish Grassland Biome- snake |
| Quaternary Consumer | An animal that eats a tertiary consumer | Pond Biome- raccoon Ocean Biome- white shark |
| Autotrophs | An organism capable of synthesizing its own food from inorganic substances, using light or chemical energy | Grassland Biome- grass Ocean Biome- phytoplankton |
| Heterotrophs | An organism that cannot synthesize its own food and is dependent on complex organic substances for nutrition | Grassland Biome- hawk Grassland Biome- snake |
| Herbivores | An animal that feeds chiefly on plants | Pond Biome- mosquito larva Ocean Biome- zooplankton |
| Carnivores | A flesh-eating animal | Grassland Biome- rat Ocean Biome- fish |
| Omnivores | An organism that eats both plants and animals | Pond Biome- dragonfly larva Grassland Biome- rat |
| biology | bio-life ology-study of living things |
Created by:
JCrespo347
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