Flashcards
Bio 20 - Chapter 3 - Ecosystems and Their Diversity
Cards in this deck (23)
- 1Bioticliving; refers to living things in the environment, such as humans, trees, fish, or bacteria
- 2Abioticnon-living; refers to non-living things in the environment, such as sunlight, water, soil, air, or minerals
- 3Speciespopulation of organisms capable of interbreeding and producing fertile offspring
- 4Populationany group of individuals of the same species living in the same geographical area at the same time
- 5Communityall of the organisms in all the interacting populations in a given area
- 6Ecosystema community of populations, together with abiotic factors that surround and affect it
- 7Biosphereall of the areas on Earth (in the air, land, and water) that are inhabited by and that support life
- 8Taxonomypractice of classifying organisms based on common fundamental characteristics
- 9Kingdomthe second highest taxonomic classification of all living things (below domain); the six kingdoms recognized in biology are Archaea, Bacteria, Protista, Fungi, Plantae, and Animalia
- 10Domainthe highest level of classification of living things (above kingdom); three domains are Bacteria, Archaea, and Eukarya
- 11Binomial Nomenclaturea system in which a two-word name (genus plus species) is used to identify an organism
- 12Dichotomous Keyidentification key that uses a series of paired comparisons to sort organisms into smaller and smaller groups
- 13Climateaverage weather conditions in a particular region over a period of time, usually 30 years or more
- 14Biomeecosystem or group of ecosystems in a specific region on Earth that has a particular combination of biotic and abiotic factors; for example, tundra, tropical rain-forest, hot desert
- 15Habitatplace or area with a particular set of characteristics, both biotic and abiotic, in which an organism lives and is able to survive and reproduce because of particular physical, physiological, and behavioral adaptations
- 16Rangegeographical area in which a population or species is found
- 17Ecological Nichethe role that members of a population play in a community, including the resources that members need and the way in which members interact with other members of the population and the community
- 18Biodiversitythe variety of species in an area and their range of behavioral, ecological, physiological, and other adaptations
- 19Limiting Factorany biotic or abiotic condition that limits the number of individuals in a population
- 20Samplea portion of an entire population; samples are counted or estimated and the results are averaged and then applied, or extrapolated, to the entire area occupied by the population
- 21Transecta long, relatively narrow rectangular area marked out in a study area for the purpose of sampling a population
- 22Quadratarea of determined size that is marked out for the purpose of sampling a population; often used to sample plants and other organisms that tend to stay in one spot all their lives
- 23Densityin population dynamics, the number of individuals per unit of area or volume in a population
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- Source: McGraw-Hill Ryerson Inquiry into Biology
- Created by
- Kristin VanArragon
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