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Biology Vocab
Vocab for Module 5
| Term | Definition |
|---|---|
| Biodiversity | Number of different species living in a specific area |
| Genetic Diversity | variety of inheritable characteristics of genes in an interbreeding population |
| Species Diversity | A biological community, the number and abundance of different species |
| Ecosystem Diversity | The variety of ecosystems in the biosphere |
| Gene | Function unit that controls inherited trait expression that is passed from one generation to another |
| Background extinction | the gradual process of species becoming extinct |
| Mass extinction | An event in which a larger percentage of all living species become extinct in a relatively short period of time |
| Natural Resource | All materials and organisms found in the biosphere |
| Over exploitation | Excessive use of species that have economic value |
| Edge effect | Different environmental conditions that occur along the boundaries of an ecosystem |
| Biological Magnification | The increasing concentration of toxic substances in organisms as trophic levels increase in a food chain or food web |
| Eutrophication | Process by which lakes become rich in nutrients from the surrounding watershed, resulting in a change in the kinds of organisms in the lake |
| Endemic | Only found in one specific geographic area |
| Bioremediation | Technique using living organisms to detoxify a polluted area |
| Direct economic value | the immediate, tangible financial or material benefit that humans derive from individual species, genetic resources, or ecosystems through direct use or harvest |
| Indirect economic value | worth of the ecological services and functions that living organisms and ecosystems provide without requiring direct harvesting, destruction, or physical consumption of the species |
| Aesthetic Value | The values used to judge the visual, design, and overall look of things EX: The visual beauty of nature |
| Scientific Value | The core principles that guide scientists when they do research |
| K strategists | An adaptations for living environments THAT ARE FAIRLY STABLE ( Typically Type I) They typically produce fewer offspring and survive longer EX: Humans |
| R strategists | An adaptation for living in an environment where FLUCTUATION IN A BIOTIC OR ABIOTIC FACTOR OCCURS ( Typically Type III) They often have short lifespan and high juvenile mortality EX: Fruit Flies and Mice |
| Type I | Most individuals survive early and middle life; mortality rises sharply in old age (Typically K strategists) |
| Type II | Individuals have a relatively constant risk of death at all ages |
| Type III | Many individuals ie young, survivors may live much longer |