What is the role of predators in an ecosystem?

• A. Animals that hunt other animals for food
• B. Plants that provide energy
• C. Organisms that photosynthesize
• D. Decomposers that recycle nutrients

Answer: (A)

Predators regulate prey populations by hunting and consuming other animals, moving energy up the food chain as they gain energy from their meals. This keeping of prey numbers in check helps prevent overuse of resources and supports a balanced, diverse community. The presence of predators can also alter where and how prey feed, which can influence plant communities and overall ecosystem structure through trophic cascades. Other roles, like producers such as plants that capture energy from the sun or decomposers that recycle nutrients, are important for energy capture and nutrient cycling, but they describe different functions than predation.