Which term describes the network of feeding relationships in an ecosystem?

Prepare for the IB Marine Science SL Exam. Use flashcards and multiple-choice questions with detailed explanations. Master marine ecosystems, ocean currents, and biological resources for success!

Multiple Choice

Which term describes the network of feeding relationships in an ecosystem?

Explanation:
Feeding relationships in an ecosystem form a network called a food web. It shows who eats whom and how energy moves through producers, consumers, and decomposers, with many interlinked pathways. This complexity is what a food web captures, unlike a simple food chain which would trace just one line of who-eats-whom. The other terms aren’t about these connections: the Hadal Zone is a deep-sea region, a Heterotroph is an organism that must ingest organic matter, and Isotonic describes a solution’s solute concentration.

Feeding relationships in an ecosystem form a network called a food web. It shows who eats whom and how energy moves through producers, consumers, and decomposers, with many interlinked pathways. This complexity is what a food web captures, unlike a simple food chain which would trace just one line of who-eats-whom. The other terms aren’t about these connections: the Hadal Zone is a deep-sea region, a Heterotroph is an organism that must ingest organic matter, and Isotonic describes a solution’s solute concentration.

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