1. organism 2. population 3. community 3. ecosystem 4. biome 5.biosphere
Any form of life. Ex: snake, turtle, fish
A group of individuals of the same species.
Populations of living organisms that interact with one another.
A group of living organisms that interact with one another and the nonliving environment.
A region of Earth that is inhabitated by a community of a distinct type of plant and animal species.
Temperate Deciduous Forest
Layer of soil, water, and air that sustains life. Ex: Earth
The sequence in which energy is transferred from 1 organism to the next as one eats the other. Always starts with the sun.
Shows an ecosystem. A bunch of food chains put together to show that organisms eat alot more then just one thing.
Trophic=energy. Each step in the transfer of energy through an eco system is known as a trophic level. 90% energy is lost between each level. 10% energy is transferred.
Biodiversity is the variety of species living in an ecosystem.
The nonliving things in an ecosystem.
The process in which communities of an ecosystem change over time.
Occurs in places where an ecosystem never exsisted. Can be caused by events like floods.
The process that begins in an ecosystem when something has been disturbed the natural community. Can be casued by events like forest fires or tornadoes.
At the end of primary or secondary sucession the community has equilibrium with little to no changes. This is called a climax community.
The species that move into an ecosystem at the beginning of primary or secondary succesion. Ex.: Lichens
Conditions of the environment that limit the growth of species. Ex.: Competeion, food, water
The number of individuals of a species that an ecosystem can support. Carring capacity is effected by limiting factors.
The living things in an ecosystem.
Started on the coasts in the 1800s when the industrial revolution started. People then moved central.
The largest disease ever recorded that is the reson why the human population decreased in 1400s.
The event that brought dramatic increase in poplutaion that occured in the 1800s.
The more people we have the faster the population is able to grow.
Holds a carry capacity for the number of people in one area.
The rate at which population grew. (was a j-curve) Highest: Africa Lowest: Russia
Any geological formation containing water.
Pollution that comes from a single source. Ex.: Factory
Pollution that comes from multiple sources. Ex.: Cars, fertilizers, and pet waste