Ecology

An organism that produces its own food supply from inorganic compounds is called a(an)

• heterotroph
• consumer
• detritivore
• autotroph

What is the original source of almost all energy in most ecosystems?

• carbohydrates
• sunlight
• water
• carbon

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

which symbiosis is this 

• parasitism 
• mutualism
• commensalism
• nonalism 

The image provided is an example of a(n):

• Producer
• Autotroph
• Consumer
• Insect

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

• 10%
• 20%
• 80%
• 50%

The living portions of the ecosystem.

• Biotic factors
• Abiotic factors

The nonliving aspects of an ecosystem.

• Abiotic factors
• Biotic 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

a relationship between two in which one species, the predator, feeds on the other species, the prey

• chemosynthesis
• predation
• cellular respiration 
• commensalism