Ecology

An organism that needs to eat other organisms to obtain energy is known as a:

• Autotroph
• Producer
• Consumer
• Mutualist

Consumer that eats plants

• heterotroph
• herbivore
• producer
• community

relationship in which two species live closely together

• resource
• mutualism
• succession
• symbiosis

Where an organism lives

• habitat
• niche 
• heterotrogh
• biosphere

What is the term for each step in the transfer of energy and matter within a biological community?

• energy path
• food web
• trophic level
• food pyramid

The amount of energy that usually transfers from one trophic level to the next...

• 10%
• 20%
• 80%
• 50%

An illustration that uses arrows to show the MANY possible directions in which matter and energy can pass through the organisms in an ecosystem.

• Food chain
• Food web
• Energy Pyramid
• Succession Map

The nonliving aspects of an ecosystem.

• Abiotic factors
• Biotic factors

The living portions of the ecosystem.

• Biotic factors
• Abiotic factors

A graphic illustration that shows each trophic level and the amount of useable energy contained within.

• Food chain
• Food web
• Energy Pyramid
• All of these