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LS2-1 Ecosystems

Ecosystems Vocabulary

QuestionAnswer
Abundance a very large quantity of something
Biodiversity the variety of life in the world or in a particular habitat or ecosystem.
climate change a change in global or regional climate patterns
deforestation the action of clearing a wide area of trees.
Density Number of individuals per unit area
density dependent factors a factor whose effects on the size or growth of a population vary with the population density.
disease An abnormal state in which the body is not functioning normally disturbance
Equilibrium A state of balance
exponential growth Population growth that is unhindered because of the abundance of resources for an ever-increasing population.
Extinction A term that typically describes a species that no longer has any known living individuals.
fluctuation rise and fall, continual variation in an ecosystem
generation A group of people born around the same time
limiting resource a resource that a population cannot live without and that occurs in quantities lower than the population would require to increase in size
logistic growth Population growth that is controlled by limited resources
Population A group of individuals that belong to the same species and live in the same area population
Predation An interaction in which one organism captures and feeds on another organism
Species A group of similar organisms that can breed and produce fertile offspring. stability
sustainable Development that meets the needs of the present without compromising the ability of future generations to meet their own needs.
trend a pattern of change over time
Abiotic factor(s) Non-living components of the environment that affect living organisms and the functioning of ecosystems, such as temperature, sunlight, and soil nutrients.
Biome A large naturally occurring community of flora and fauna occupying a major habitat, e.g., forest, tundra, or desert.
Biotic factor(s) Living components of an ecosystem that affect other organisms, such as predators, competitors, and food availability.
Carrying capacity The maximum population size of a species that a particular environment can sustain indefinitely.
Commensalism A relationship between two organisms in which one benefits and the other neither benefits nor is harmed.
Community All the different species that live together in a habitat.
Competition The struggle between organisms for limited resources, such as food, space, or light.
Density-independent Factors that affect the population regardless of its density, such as natural disasters or severe climate events.
Disturbance An event or change that disrupts an ecosystem or community, such as a wildfire, flood, or human activity.
Ecosystem A biological community of interacting organisms and their physical environment.
Environment The surroundings or conditions in which a person, animal, or plant lives or operates.
Limiting factor Environmental factors that limit the growth, abundance, or distribution of an organism or a population within an ecosystem.
Mutualism A symbiotic relationship in which both species benefit.
Niche The role and position a species has in its environment – how it meets its needs for food, shelter, and reproduction.
Parasitism A relationship between two organisms where one benefits at the expense of the other.
Pollution The introduction of harmful substances or products into the environment.
Population growth model Mathematical models that predict how a population will change.
Stability The ability of an ecosystem to return to its original state after being disturbed.
Symbiosis A relationship between two or more organisms that live closely together. It can be mutualistic, parasitic, or commensal.
Created by: brookebiery
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