What is the impact of pesticides on ecosystems?

The choice indicating that pesticides can disrupt ecosystems and lead to biodiversity loss is correct because pesticides are designed to target specific pests; however, their application can have unintended consequences on non-target species. When pesticides are used, they can contaminate the soil, water, and air, affecting a wide range of organisms within an ecosystem, not just the intended pests.

For example, beneficial insects such as pollinators, earthworms, and predatory species that help control pest populations can be harmed by pesticide exposure. Additionally, herbicides can affect plant diversity by eliminating not only the target weeds but also beneficial plants, leading to reduced food sources and habitats for various animals. This disruption can affect the entire food web, potentially leading to species decline or even extinction.

Recognizing the ecological interconnectedness is key; when one species is affected, it can have a cascading effect throughout the ecosystem, leading to a loss of biodiversity. Such losses can impair ecosystem functions and services, ultimately impacting human health and food security as well.