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Ecosystem (population changes: (The number of individuals in a population…
Ecosystem
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definition of ecosystem: contains all the living and nonliving parts of the environment in a given area
The nonliving part: abiotic. eg: sunlight, water, sand the living or once living: biotic eg: plants
niche: It is the way a species interacts with abiotic and biotic factors to obtain food, find shelter and fulfill other needs
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carrying capacity; it is the largest number of individuals of one species that an ecosystem can support over time.
if individuals live closer together:increased competition, easier transmission of diseases
population greater than carrying capacity:area becomes overpopulated, individuals move or die out
carrying capacity greater than population: good growing conditions or the disappearance of competing species
Habitat: is the place within an ecosystem that provides the biotic and abiotic factors an organism need to survive and reproduce.
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competition: describes interactions between two or more organisms that need the same resource at the same time
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symbiosis
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commensalism: it is a type of symbiosis where one species benefit from the relationship and the other is neither harmed or benefited
like a tree and a bird, the bird uses the tree as a shelter and the tree is neither benefited or harmed
definition: is a close, long-term relationship between two species that usually involves an exchange of food or energy