Narrow-spectrum pesticides do what?

• A. Move within plant
• B. Affect many organisms
• C. Target specific pests
• D. Are non-toxic to pests

Answer: (C)

The main idea here is selectivity: narrow-spectrum pesticides are designed to affect only a limited set of pests, often a single species or a small group, so they spare most non-target organisms. That focused action is what makes them different from broad-spectrum products that affect many organisms. Because their purpose is to control a specific pest while minimizing collateral damage, they are described as targeting specific pests. The other ideas don’t fit: moving within the plant describes systemic behavior, not the range of organisms affected; affecting many organisms is the hallmark of broad-spectrum products; and being non-toxic to pests would defeat the purpose of a pesticide.