<span>All of the populations of different species that occupy and are adapted to a given area are referred as a community.
In a community, there will be many populations of different species. Population is a group of individual in a certain area. The more species in the community, the more complex it is.</span>
heterotrophs energy comes from the sun
<span>Minerals are solids.
That is because when water freezes into ice it becomes a mineral, since it's a solid at that time.
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