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Ecosystem Components and Functions Quiz

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Questions and Answers

What is the primary function of decomposers in an ecosystem?

Convert sunlight into energy
Regulate the temperature of the ecosystem
Provide nutrients to the primary consumers
Break down dead organisms and organic matter (correct)

What are the biotic components of an ecosystem?

Plants, animals, and microorganisms (correct)
Rocks, minerals, and nutrients
Water, air, and soil
Sunlight, temperature, and climate

Which trophic level represents primary consumers in a food chain?

Producers
Herbivores (correct)
Carnivores
Decomposers

Which of the following is a biotic component of an ecosystem?

Plants (D) Signup and view all the answers

What is the primary source of energy in most ecosystems?

Sunlight (D) Signup and view all the answers

Which of the following best describes the role of decomposers in an ecosystem?

Break down dead organic matter (C) Signup and view all the answers

What is the primary role of animals in an ecosystem?

Influencing the quantity of plant and microbial biomass present (A) Signup and view all the answers

Which process contributes to the entry of energy into an ecosystem?

Photosynthesis (D) Signup and view all the answers

What do decomposers primarily contribute to the ecosystem?

Release of carbon back to the atmosphere and facilitation of nutrient cycling (B) Signup and view all the answers

Which factors control the overall structure of an ecosystem?

External factors such as climate, parent material, and topography (A) Signup and view all the answers

What is the main function of energy flows in an ecosystem?

Movement of matter and energy through the system (D) Signup and view all the answers