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Food Chains in Ecosystems

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Questions and Answers

What occurs when consumers have more than one food source?

Branching off of food chains occurs (correct)

Linear food chains are formed

Energy flow is reversed

Food chains become shorter

What do food webs represent?

The transfer of nutrients only from one trophic level to another

The transfer of energy only from producers to primary consumers

The transfer of energy and nutrients among organisms in an ecosystem (correct)

The transfer of energy only from the sun to plants

What is a characteristic of multilevel consumers or omnivores?

They are always producers

They can occupy more than one trophic level (correct)

They only consume plants

They occupy only one trophic level

What percentage of total light falling on green plants is utilized for photosynthesis?

1% Signup and view all the answers

What is the term for the transfer of energy from one trophic level to another trophic level?

Energy flow Signup and view all the answers

What is the primary source of energy for an ecosystem?

Solar energy Signup and view all the answers

What is the role of photosynthesis in an ecosystem?

To transform solar energy into chemical energy Signup and view all the answers

What is formed when many food chains are interconnected?

A food web Signup and view all the answers

At which trophic level do humans occupy when they consume food derived from plants?

2nd trophic level Signup and view all the answers

What is the term for the movement of nutrients through an ecosystem?

Nutrient cycle Signup and view all the answers