Classification of Organisms Quiz

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Questions and Answers

What is the main characteristic of autotrophs?

They can make their own food using sunlight. (correct)
They decompose organic matter.
They rely on other organisms for energy.
They consume other animals exclusively.

Which of the following correctly describes heterotrophs?

They recycle organic matter back into the ecosystem.
They depend on other organisms for nutrition. (correct)
They produce energy through photosynthesis.
They are primarily responsible for nutrient absorption in soil.

What role do decomposers play in an ecosystem?

They break down dead organisms and recycle nutrients. (correct)
They consume plants and herbivores.
They produce energy through sunlight.
They are the primary producers of an ecosystem.

Which of the following is NOT a type of heterotroph?

<p>Decomposer (C)</p> Signup and view all the answers

Which process do autotrophs utilize to convert sunlight into food?

<p>Photosynthesis (A)</p> Signup and view all the answers

Flashcards

Autotrophs (Producers)

Organisms that use Sunlight directly to make food using Photosynthesis. They are called autotrophs because they can make their own food (troph = nutrition).

Heterotrophs (Consumers)

Organisms that eat producers or other organisms for energy. They depend on other organisms for food and energy.

Herbivore

A type of consumer that eats only plants.

Carnivore

A type of consumer that eats only other animals.

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Omnivore

A type of consumer that eats both plants and animals.

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Study Notes

Classification of Organisms

Organisms are classified into three groups: Autotrophs/Producers, Heterotrophs/Consumers, and Decomposers.

Autotrophs/Producers

Autotrophs are organisms that use sunlight directly to make food.
They do this through photosynthesis.
They are called autotrophs because they produce their own food.
Examples include: Grass, Plants, Trees, and Corn.

Heterotrophs/Consumers

Heterotrophs are organisms that eat producers or other organisms for energy.
They depend on other organisms for food.
Examples of heterotrophs include herbivores, carnivores, omnivores, and scavengers.