As you move up the food chain, the number of organisms and the amount of energy typically do what?

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Prepare for the Virginia 7th Grade Science SOL Test. Incorporate flashcards and multiple choice questions, each with hints and detailed explanations. Ensure your success on the exam!

Multiple Choice

As you move up the food chain, the number of organisms and the amount of energy typically do what?

Explanation:
Energy moves through a food chain, and most of it is used by organisms for life processes or lost as heat. Only a small portion passes to the next level, so less energy is available to support organisms higher up. Because energy is limited, there are many producers, fewer herbivores, and even fewer carnivores. So as you move up the chain, the number of organisms and the energy available typically decrease. Real ecosystems can vary, but the general pattern is a decrease.

Energy moves through a food chain, and most of it is used by organisms for life processes or lost as heat. Only a small portion passes to the next level, so less energy is available to support organisms higher up. Because energy is limited, there are many producers, fewer herbivores, and even fewer carnivores. So as you move up the chain, the number of organisms and the energy available typically decrease. Real ecosystems can vary, but the general pattern is a decrease.

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