Levels of Organization
This term describes all the living and nonliving things in an area.
What is an ecosystem?
Energy enters most ecosystems through this source.
What is the Sun?
This shows a single path of energy flow through an ecosystem.
What is a food chain?
This interaction benefits both organisms involved.
What is mutualism?
This worldview places humans at the center of nature’s value.
What is anthropocentrism?
This level includes all populations of different species living together.
What is a community?
Organisms that make their own food using sunlight belong to this trophic level.
What are producers?
This shows many interconnected feeding relationships.
What is a food web?
This interaction benefits one organism while the other is unaffected.
What is commensalism?
This worldview believes nature has intrinsic value beyond human use.
What is ecocentrism?
This refers to a group of organisms of the same species living in one area.
What is a population?
This rule states that only around a certain percentage of energy transfers to the next trophic level.
What is the 10% rule?
This process causes toxins to build up within a single organism over time.
What is bioaccumulation?
This interaction benefits one organism while harming the other.
What is parasitism?
This philosophy supports managing Earth’s resources mainly for human benefit.
What is planetary management?
This term describes organisms that can reproduce and produce fertile offspring.
What is a species?
This type of diagram shows decreasing energy at higher trophic levels.
What is a trophic pyramid?
This process causes toxins to increase in concentration at higher trophic levels.
What is biomagnification?
This occurs when organisms compete for limited resources.
What is competition?
This perspective emphasizes living sustainably as part of nature.
What is environmental wisdom?
These factors include sunlight, temperature, and water.
What are abiotic factors?
This term describes organisms that cannot make their own food and must consume others.
What are heterotrophs?
These organisms break down dead matter and recycle nutrients.
What are decomposers?
This principle states that two species cannot occupy the same niche indefinitely.
What is the Competitive Exclusion Principle?
This debate focused on damming a valley in Yosemite for water supply.
What is the Hetch Hetchy debate?