Metamorphic rocks underground melt to become magma. When a volcano erupts, magma flows out of it. As the magma/lava cools it hardens and becomes igneous rock.
<em><u>Population is the level of organization that describes group of the same species that lives in the same area.</u></em>
Other levels of organization in an ecosystem are; organism, community, ecosystem, biome.
An organism is an individual living thing. Community is a group of different species that live together in one area. Therefore, a community is made up of several populations.
Ecosystem includes all of the organisms as well as the climate, soil, water, rocks and other non-living things in an area.
