Which statement about systemic effects is true?

Which statement about systemic effects is true?

• A. They occur only at the site of entry
• B. They are always immediate
• C. They are not absorbed into the bloodstream
• D. They may last a relatively short or long time

Answer: (D)

Systemic effects happen when a pesticide is absorbed into the body and travels through the bloodstream to affect tissues distant from the entry point. The statement that they may last a relatively short or long time is true because the duration depends on how the chemical is absorbed, distributed, metabolized, and eliminated by the body, which can vary widely between substances and exposure scenarios. Explanation of other ideas: these effects are not limited to the entry site; they can affect distant organs. They are not always immediate—symptoms can appear after a delay as the chemical moves through the body. and they are not confined to staying outside the bloodstream; systemic effects require absorption into the bloodstream to reach other sites.

Systemic effects happen when a pesticide is absorbed into the body and travels through the bloodstream to affect tissues distant from the entry point. The statement that they may last a relatively short or long time is true because the duration depends on how the chemical is absorbed, distributed, metabolized, and eliminated by the body, which can vary widely between substances and exposure scenarios.

Explanation of other ideas: these effects are not limited to the entry site; they can affect distant organs. They are not always immediate—symptoms can appear after a delay as the chemical moves through the body. and they are not confined to staying outside the bloodstream; systemic effects require absorption into the bloodstream to reach other sites.