Phosphorus is an essential nutrient for plants and animals. Phosphorus is a limiting nutrient for aquatic organisms. Phosphorus forms parts of important life-sustaining molecules that are very common in the biosphere.
The horrific forced transport of Africans into America during the age of exploration as part of the slave trade that was going on where Africans were transported on ships from Africa, chained up like animals all the way to America was an example of international migration affecting the population.
External influences forced Africans to go from Africa to another continent and live there.
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In interspecies competition, two species use the same limited resource. Competition has a negative effect on both of the species (-/- interaction). A species' niche is basically its ecological role, which is defined by the set of conditions, resources, and interactions it needs (or can make use of).
It is a good idea to create models of how populations are changing so that we are able to take a better look into what is causing it, if it is a bad or good thing that is taking place, how socioeconomic status may be playing an affect on the changes ect. It can also show if there are concerns coming on the horizon by looking at the change and poll shifts.
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a thing or event that evokes a specific functional reaction in an organ or tissue
a thing that rouses activity or energy in someone or something; a spur or incentive
an interesting and exciting quality.
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