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Biology Unit 7/8
Biology Terms
| Term | Definition |
|---|---|
| Tropical Rainforests | warm temperature and abundant rainfall. lush thick forests |
| Grassland | warm summers with dry season and rainy season. Tall grasses with scattered trees |
| Desert | almost no rain fall. vegetation store water of have deep root systems |
| Temperate Frost | hot in summer and cold in winter Precipitation spaced evenly over the year mainly deciduous trees |
| Taiga | Long cols winters and coniferous trees |
| Tundra | very cold most of the year a little precipitation ground is permanently frozen and mosses and low lying plants survive |
| Density dependant Factor | a limiting factor the depends on population size |
| Density independant factor | a limiting factor that does not depend on the population size like natural disasters |
| Predator/ Prey relationship | a relationship in which one organism feeds another organism |
| Intraspecific Competition | competition between organisms of the same species |
| Interspecific Competition | competition between organisms of different species |
| symbiosis | close and permanent relationship between organisms of different species |
| parasitism | relationship in which one organism benefits and the other is harmed |
| commensalism | a relationship in which one organism benefits and other is neither harmed nor helped |
| Mutualism | a relationship in which both organisms benefit |
| terrestrial succession | piece of land in northern virginia is cleared so that nothing remains but the soil |
| pioneer species | A pioneer species is a species [usually plants] first colonize on damaged or newly made land. |
| Climax community | occurs when succession slows down and a stable community is established |
| primary succession | when succession occurs in an area completely lacking vegetation and soil |
| Secondary succession | when succession in an area after an ecological disturbance |
| aquatic pond succession | when a new pond is formed there are no organisms living in it |
| Competition | A group of organisms fighting for the same resources |
| predation | a relationship in which one organism feeds another organism |
| symbiosis | close and permanent relationship between organisms of different species |
| pioneer species | a pioneer species is a species first colonized on damaged or newly made land |
| climax community | occurs when succession slows down and a stable community is established |
| primary succession | when succession occurs in an area completely lacking vegetation and soil |
| photosynthesis | The process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water |
| mitochondria | An organelle found in large numbers in most cells, in which the biochemical processes of respiration and energy production occur. |
| chloroplasts | (in green plant cells) A plastid that contains chlorophyll and in which photosynthesis takes place. |
| cellular respiration | respiration: the metabolic processes whereby certain organisms obtain energy from organic molecules; processes that take place in th |
| Succesion | A group of strata representing a single chronological sequence. |
Created by:
cindyWHS
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