Which statement correctly differentiates chemical control from biological control?

Which statement correctly differentiates chemical control from biological control?

• A. Chemical control uses pesticides; biological control uses living organisms.
• B. Chemical control uses living organisms; biological control uses pesticides.
• C. Both rely on genetic modification.
• D. Both are illegal.

Answer: (B)

The difference being tested is the tool used to control pests. Chemical control relies on chemical substances—pesticides—to kill or deter pests. Biological control, on the other hand, uses living organisms—predators, parasites, or pathogens—that naturally suppress pest populations. This distinction matters because it highlights quick, broad action versus more targeted, ecological approaches. Pesticides can act fast and cover large areas, but may affect non-target species and lead to resistance. Biological control tends to be more sustainable and specific, though it can take longer to achieve noticeable reductions. The idea that chemical control uses living organisms or that biological control uses pesticides is incorrect, and neither method necessarily involves genetic modification or is illegal.

The difference being tested is the tool used to control pests. Chemical control relies on chemical substances—pesticides—to kill or deter pests. Biological control, on the other hand, uses living organisms—predators, parasites, or pathogens—that naturally suppress pest populations.

This distinction matters because it highlights quick, broad action versus more targeted, ecological approaches. Pesticides can act fast and cover large areas, but may affect non-target species and lead to resistance. Biological control tends to be more sustainable and specific, though it can take longer to achieve noticeable reductions.

The idea that chemical control uses living organisms or that biological control uses pesticides is incorrect, and neither method necessarily involves genetic modification or is illegal.