Biology Regents Review

Approximately how much energy is transferred from one trophic level to the next?

• 1%
• 100%
• 10%
• 50%

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What is the difference between a food chain and a food web?

• A food chain in one pathway of energy
• A food web is one pathway of energy
• A food chain shows multiple pathways of energy
• A food web is the same as a food chain

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

• Autotroph
• Producer
• Consumer
• Mutualist

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Consumer that eats plants

• heterotroph
• herbivore
• producer
• community

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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 nonliving aspects of an ecosystem.

• Abiotic factors
• Biotic 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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An ant lives on an acacia tree- the ant protects the tree and the tree feeds the ant. What kind of relationship is this?

• Mutualism

• Commensalism

• Parasitism

• Predation

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Which of the following are the ecosystem’s main decomposers?

• Scavengers

• Fungi and Bacteria

• Birds

• Lions and Bears

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The Insect population would most likely DECREASE if there were…

• An increase in decomposers

• An increase in the amount of grass

• A decrease in Mice and Shrews

• A decrease in the amount of available sunlight

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