Vocab 2-2
Terms
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- Weather
- the condition of Earth's atmosphere at a particular time and place
- Climate
- Overall weather in an area over a long period of time
- Greenhouse Effect
- warming that results when solar radiation is trapped by the atmosphere
- Polar Zone
- cold climate zone where the sun's rays strike Earth at a very low angle
- Temperate Zone
- moderate climate zone between the polar zones and the tropics
- Tropic Zone
- area near equator - warm year round
- Biotic Factor
- biological influence on organisms within an ecosystem
- Abiotic Factor
- physical, or nonliving, factor that shapes an ecosystem
- Habitat
- Place where an Organism lives
- Niche
- full range of physical and biological conditions in which an organism lives and the way in which the organism uses those conditions
- Competition
- the struggle between organisms to survive in a habitat with limited resources
- Resource
- any necessity of life, such as water, nutrients, light, food, or space
- Competitive Exclusion principle
- no two species can occupy the same niche in the same habitat at the same time
- Predation
- interaction in which one organism captures and feeds on another organism
- Symbiosis
- relationship in which two species live closely together
- Mutualism
- both species benefit
- Commensalism
- symbiotic relationship in which one member of the association benefits and the other is neither helped nor harmed
- Parasitism
- one organism lives on or inside another organism and harms it
- Ecological Succession
- series of predictable changes that occurs in a community over time
- Primary Succession
- succession that occurs on surfaces where no soil exists
- Limiting Factor
- factor that causes the growth of a population to decrease
- Density Dependent
- Referring to any characteristic that varies according to an increase in population density.
- Density independent
- Referring to any characteristic that is not affected by population density.
- Demography
- the branch of sociology that studies the characteristics of human populations