Which term describes the sequence of organisms where each organism feeds on the one before it in the chain?

• A. Weir
• B. Food chain
• C. Wellington Street Dam
• D. Soccer Field

Answer: (B)

In ecosystems, energy moves from one organism to the next through feeding relationships, forming a simple line called a food chain. Each step shows an organism that feeds on the one before it, from producers like plants up through herbivores and then predators. That clear sequence is what the term “food chain” describes. The other options don’t relate to feeding relationships: a weir is a barrier in a river, a specific dam name, and a soccer field is just a sports field.