Area that tree growth is hindered by low temperatures and short growing seasons.
A species of animals that recieve 10% of energy from the primary consumers.
Plant life that produces energy from the sun,(photsynthesis) and is fed off to primary consumers.
A representation of the predator-prey relationships between species within an ecosystem or habitat
A species that is threatened to go extinct from the environment
A species that is endangered of becoming extinct from an environment.
A group of organisms.
Group of different living organisms living together.
Living organism or one time was living or a piece of something that was living.
Non-living organism or never having lived.
A process of regrowth that begins in an ecosystem when something has disturbed or destroyed the natural community.
Biotic and Abiotic factors that prevent the continuous growth of a population
The change in population over time for species of animals, plants, and humans.
Desalination, A process that removes excess salt or other minerals from water.
Watershed, A region that's drained by, or one that contributes water to, a stream, lake, or other body of water.
Point source, Wastewater that comes from a specific source in sewers or other pipes that flow into a body of water.
Non-point sources, Pollution that is untraceable to the location that it comes from.
Natural reources, Materials or things people use from the Earth.
Renewable resources, Any material or energy source that cycles or can be replaced within a human life span.
Nonrenewable resources, Materials or energy source that cannot be replaced during a human life span.