What is the step in a food chain or food web called?

• A. Trophic Level
• B. Niche
• C. Habitat
• D. Community

Answer: (A)

Trophic levels describe the step in a food chain or food web based on how organisms obtain energy. At the base are producers that capture energy from the sun, followed by primary consumers that eat those producers, then secondary consumers that eat primary consumers, and so on. Energy moves from one level to the next and typically diminishes at higher levels, which is why this concept is central to understanding how ecosystems transfer and use energy.

Niche refers to an organism’s role in the ecosystem—the way it uses resources and how it interacts with other species. Habitat is the physical environment where an organism lives. A community is all of the different populations that live together in a particular area. These ideas describe different aspects of ecological organization, not the position in the energy-transfer sequence.