Nutrients and Trophic Levels Quiz

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Questions and Answers

Which nutrient is a component of food?

  • Cellulose
  • Chlorophyll
  • Chitin
  • Protein (correct)

Which component of food provides energy?

  • Fiber
  • Carbohydrates (correct)
  • Vitamins
  • Minerals

Which component of food aids in digestion and helps prevent constipation?

  • Fat
  • Protein
  • Sugar
  • Fiber (correct)

What are the two broad categories of life forms based on their trophic levels?

<p>Autotrophs and heterotrophs (B)</p> Signup and view all the answers

From where do autotrophs mainly obtain their energy for chemical reactions?

<p>Mainly from the Sun and largely by photosynthesis (C)</p> Signup and view all the answers

What are mixotrophs?

<p>Autotrophic organisms that partially obtain organic matter from sources other than the atmosphere (A)</p> Signup and view all the answers

What do the linkages in a food web illustrate?

<p>Feeding pathways, such as where heterotrophs obtain organic matter by feeding on autotrophs and other heterotrophs (A)</p> Signup and view all the answers

What does a food web illustrate?

<p>The flow of energy and matter through an ecosystem (D)</p> Signup and view all the answers

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