Which term describes a sequence of organisms in which each is eaten by the next?

Which term describes a sequence of organisms in which each is eaten by the next?

• A. Food chain
• B. Grazing food chain
• C. Niche
• D. Food web

Answer: (B)

Think about how energy moves through an ecosystem through feeding relationships. A sequence where each organism is eaten by the next describes a food chain. A grazing food chain is a specific kind that starts with plants and follows herbivores and then their predators, so it's a type of food chain. A food web is a broader concept—many food chains interconnected in an ecosystem. A niche is about the role a species plays in its environment, not the sequence of who eats whom. So the general term for that description is food chain; the grazing variation describes a particular path within that chain.

Think about how energy moves through an ecosystem through feeding relationships. A sequence where each organism is eaten by the next describes a food chain. A grazing food chain is a specific kind that starts with plants and follows herbivores and then their predators, so it's a type of food chain. A food web is a broader concept—many food chains interconnected in an ecosystem. A niche is about the role a species plays in its environment, not the sequence of who eats whom. So the general term for that description is food chain; the grazing variation describes a particular path within that chain.