What do you call organisms that must consume other organisms to obtain energy and nutrients?

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Prepare for the March Mammal Madness Vocabulary Test. Use flashcards and multiple choice questions with hints and explanations to enhance your learning experience. Get yourself ready for the exciting challenge!

Multiple Choice

What do you call organisms that must consume other organisms to obtain energy and nutrients?

Explanation:
Heterotrophs are organisms that must obtain energy by consuming other organisms or their organic matter. They rely on preformed nutrients produced by autotrophs or by other heterotrophs, rather than making energy-rich molecules from sunlight or inorganic sources themselves. Producers, typically autotrophs like plants and many algae, generate energy from light or chemical reactions, so they don’t fit the description. Decomposers are a type of heterotroph that feed on dead material, returning nutrients to the ecosystem, but the broader term that covers all such consumers is heterotroph.

Heterotrophs are organisms that must obtain energy by consuming other organisms or their organic matter. They rely on preformed nutrients produced by autotrophs or by other heterotrophs, rather than making energy-rich molecules from sunlight or inorganic sources themselves. Producers, typically autotrophs like plants and many algae, generate energy from light or chemical reactions, so they don’t fit the description. Decomposers are a type of heterotroph that feed on dead material, returning nutrients to the ecosystem, but the broader term that covers all such consumers is heterotroph.

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