A population that eats organisms from another population.

• A. Predator population
• B. Resource population
• C. Consumer population
• D. Food web

Answer: (C)

The main idea here is understanding ecological roles in feeding relationships. When a population gains energy by eating organisms from another population, it is performing the role of a consumer. A consumer is any population that feeds on other organisms, not just those that hunt in a particular way. A predator is a type of consumer that kills and eats prey, but the broader term that fits the description “a population that eats organisms from another population” is a consumer population. The other options don’t fit: a resource population is what is being consumed, not the eater; a food web is the network of feeding relationships, not a single population.