Why are food chains relatively short?

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Basic Biology Practice Test: Community Ecology — practice the complete quiz, review flashcards, or try a random question.

Community ecology is a branch of ecology that studies the factors that affect biodiversity and community structure. It examines the interactions between organisms in a habitat, including the distribution, structure, abundance, and interactions between coexisting populations.  Community ecology seeks to answer questions such as: How does the depth of a lake affect the complexity of the community living within it? Why do some places have more species than others? Is there competition in nature?   Community ecology focuses on interactions between populations as determined by specific... Show more

Why are food chains relatively short?