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ecosystem (Symbiosis is a close, long-term relationship between two…
ecosystem
Symbiosis is a close, long-term relationship between two species that usually involves an exchange of food or energy
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commensalism:It is type of symbiosis where one species benefit
from the relationship and the other species is neither harmed nor benefited
parasitism: It is type of symbiosis where one species
( the parasite ) benefits and the other species ( the host ) is harmed
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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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Carrying capacity it is the largest number of individuals of one species that an ecosystem can support over time
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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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Competition describes interactions between two or more organisms that need the same resource at the same time
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Amensalism: A Negative/Zero Interaction
Amensalism describes an interaction in which the presence of one species has a negative effect on another, but the first species is unaffected. For example, a herd of elephants walking across a landscape may crush fragile plants. Amensalistic interactions commonly result when one species produces a chemical compound that is harmful to another species. The chemical juglone produced in the roots of black walnut inhibit the growth of other trees and shrubs, but has no effect on the walnut tree.
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