ES: Unit 3 Test Review

_____ is when multiple species are using the same resource in different ways to avoid direct competition. 

• Characteristic Displacement
• Niche Differentiation
• Resource Partioning
• Resource Differentiation

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

Autotrophs make up the _______ tropic level in all ecosystems.

• First
• Second
• Third
• Fourth

A living relationship between two species in which one organism is harmed but not killed is called...

• mutualism
• commensalism
• parasitism
• niche

What does a food web represent?

• All connections of energy flow throughout all organisms in a habitat.
• The specific ways that mutualism is carried out.
• A single pathway or energy flow between organisms. 
• How carnivores get their food. 

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

• Carnivore
• Herbivore
• Producer
• Autotroph

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%