Final answer:
The negative effect of human utilization of grasslands and forested areas for farming or urban purposes on ecosystems is the disruption of wildlife. This includes habitat loss, decreased biodiversity, and long-term ecological imbalance.Option C is the correct answer.
Step-by-step explanation:
When humans utilize native grasslands or forested areas for farming or urban use, one of the negative effects of these changes on the ecosystem is c) Disruption of wildlife. This refers to the impact on the natural habitats and the species that reside in them.
Human activities, including the conversion of forests to agricultural land and urbanization, replace natural habitats with artificial ones, leading to a decrease in biodiversity and potentially driving some species to extinction. As forests are cleared and fragmented, native species lose the continuous, stable environments they require, and the ecological balance is disrupted.
Moreover, human modifications to ecosystems, such as those arising from agricultural practices, urban sprawl, and pollution, often result in the degradation or loss of habitats. The introduction of toxic chemicals, many of which are endocrine disrupters, causes further harm to wildlife across different ecosystems. Consequently, while natural disturbances can often lead to ecological succession and recovery, the disturbances caused by human activities tend to have more long-lasting and detrimental effects on ecosystems.