The reason that more calories are required to support algae than required to support humans. Introduction: The autotrophs that are capable of synthesizing carbohydrates by harvesting the energy from light are called photoautotrophs. The heterotrophs are the organisms that function as primary, secondary, and tertiary consumers in the food chain. They are all animals including humans.

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Chapter 56, Problem 1IQ

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To determine: The reason that more calories are required to support algae than required to support humans.

Introduction: The autotrophs that are capable of synthesizing carbohydrates by harvesting the energy from light are called photoautotrophs. The heterotrophs are the organisms that function as primary, secondary, and tertiary consumers in the food chain. They are all animals including humans.

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