6143262028 | biome | regional ecosystem characterized by distinctive climate and soil conditions and a distinctive kind of biological community adapted to those conditions. | 0 | |
6143263922 | limiting factors | The single requirement for growth available in the least supply in comparison to the need of an organism. Originally applied to crops but now often applied to any species. | 1 | |
6143268383 | Dissolved Oxygen Content | Aeration, atmosphere, and photosynthesis. The amount of oxygen freely available in water and necessary for aquatic life and the oxidation of organic materials. | 2 | |
6143273187 | Ecological Efficiency | 3 | ||
6143273186 | Trophic Level | In an ecological community, all the organisms that are the same number of food-chain steps from the primary source of energy. | 4 | |
6143313633 | Ecological Niche | The general concept is that the niche is a species' "profession"—what it does to make a living. The term is also used to refer to a set of environmental conditions within which a species is able to persist. | 5 | |
6143484624 | Habitat | Where an individual, population, or species exists or can exist. | 6 | |
6143484625 | Fundamental Niche | The full potential range of the physical, chemical, and biological factors a species can use if there is no competition from other species. | 7 | |
6143486484 | Realized Niche | Parts of the fundamental niche of a species that are actually used by that species | 8 | |
6143489225 | Background Extinction | The continuous, low-level extinction of species that has occurred throughout much of history. | 9 | |
6143489226 | Adaptive Radiations | Process in which numerous new species evolve to fill vacant and new ecological niches in changed environments, usually after a mass extinction. Typically takes millions of years. | 10 | |
6143495079 | Biomagnification | The tendency for some substances to concentrate with each trophic level. Organisms preferentially store certain chemicals and excrete others. | 11 | |
6143495080 | Bioaccumulation | A process by which chemical substances are ingested and retained by organisms, either from the environment directly or through consumption of food containing the substances. | 12 | |
6143496883 | Primary Succession | The initial establishment and development of an ecosystem that includes the process of creating soil. | 13 | |
6143496884 | Secondary Succession | The reestablishment of an ecosystem where there are remnants of a previous biological community. | 14 | |
6143498787 | Biopharming | Use of genetically engineered animals to act as bio-factories for producing drugs, vaccines, antibodies, hormones, industrial chemicals such as plastics and detergents, and human body organs | 15 | |
6143500426 | Upwelling | The movement of nutrient rich waters from the bottom of the ocean to the surface. | 16 | |
6143501597 | Greenhouse Gas | Gases that increase the temperature of the earth's surface. | 17 | |
6143501598 | Rain Shadow Effect | Precipitation falls on the windward side of a mountain range, resulting in lush vegetation & a warm, moist climate on one side, but a desert area on the leeward side. | 18 | |
6143506305 | Deciduous Trees | Loose/drop/shed their leaves | 19 | |
6143506306 | Euphotic Zone | The SHORE of the ocean. The depth of the water in a lake or ocean that is exposed to such intensity of sunlight | 20 | |
6143507704 | Estuary | Freshwater and Saltwater mix | 21 | |
6143507705 | Watershed | An area of land that forms the drainage of a stream or river. | 22 | |
6143512461 | Indicator Species | A species whose status provides information on the overall condition of the ecosystem and of other species in that ecosystem. They reflect the quality and changes in environmental conditions as well as aspects of community composition. | 23 | |
6143512462 | Keystone Species | a species that has a large effect on its community or ecosystem so that its removal or addition to the community leads to major changes in the abundances of many or all other species. | 24 | |
6143514396 | Carrying Capacity | The maximum abundance of a population or species that can be maintained by a habitat or ecosystem without degrading the ability of that habitat or ecosystem. | 25 | |
6143515537 | K Selected Species | relatively stable populations and tend to produce relatively low numbers of offspring; however, individual offspring | 26 | |
6143516732 | R Selected Species | a high growth rate, and, typically exploit less-crowded ecological niches, and produce many offspring, each of which has a relatively low probability of surviving to adulthood | 27 | |
6143516733 | Metapopulations | a group of populations that are separated by space but consist of the same species. | 28 | |
6143518787 | Crude Birth Rate | The annual number of live births per 1000 population, without regard to age or sex composition. | 29 | |
6143518788 | Crude Death Rate | The annual number of deaths per 1000 population, without regard to age or sex composition. | 30 | |
6143520719 | Total Fertility Rate | Average number of children expected to be born to a woman during her lifetime. | 31 | |
6143522067 | Infant Mortality Rate | The probability of dying between birth and exactly one year of age, expressed per 1,000 live births. | 32 |
APES Flashcards
Primary tabs
Need Help?
We hope your visit has been a productive one. If you're having any problems, or would like to give some feedback, we'd love to hear from you.
For general help, questions, and suggestions, try our dedicated support forums.
If you need to contact the Course-Notes.Org web experience team, please use our contact form.
Need Notes?
While we strive to provide the most comprehensive notes for as many high school textbooks as possible, there are certainly going to be some that we miss. Drop us a note and let us know which textbooks you need. Be sure to include which edition of the textbook you are using! If we see enough demand, we'll do whatever we can to get those notes up on the site for you!