Ecology Unit Review

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

• Autotroph

• Producer

• Heterotroph

• Parasitic

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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. 

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The rabbit in this food web would be considered a:

• Decomposer
• Producer
• Secondary Consumer
• Primary Consumer

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

• 10%
• 20%
• 80%
• 50%

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The nonliving aspects of an ecosystem.

• Abiotic factors

• Biotic factors

• Symbiotic factors

• Density-dependent factors

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The living portions of the ecosystem.

• Biotic factors

• Abiotic factors

• Symbiotic Factors

• Density-dependent factors

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As you move upward, from level to level, in an energy pyramid, energy _____.

• increases
• decreases
• stays the same
• increases exponentially

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 plants that convert energy from the sun

• decomposer
• primary consumer
• secondary consumer
• producer

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What are the Abiotic factors in this image? 

• water, sunlight, dirt, air
• birds and plants
• birds, water, dirt
• plants, water

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which symbiosis is this 

• parasitism 
• mutualism
• commensalism
• nonalism 

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