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?

Autotrophs and heterotrophs (B) Signup and view all the answers

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

Mainly from the Sun and largely by photosynthesis (C) Signup and view all the answers

What are mixotrophs?

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

What do the linkages in a food web illustrate?

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

What does a food web illustrate?

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