TRUE or FALSE: It is more likely that a toxicant enters the body through an existing wound than through a cut or puncture.

The correct assertion is that it is more likely for a toxicant to enter the body through a cut or puncture than through an existing wound. While wounds may provide a point of entry for toxicants, cuts and punctures, which are typically newer and potentially less healed than existing wounds, often present a more direct pathway into the bloodstream. The skin acts as a protective barrier, and the integrity of that barrier is crucial in preventing the entry of hazardous substances. A fresh cut or puncture can compromise this barrier more significantly than a healing wound, which might be surrounded by more resilient tissue. Thus, the assertion that it is more likely for a toxicant to enter through a wound instead of a cut or puncture is false, making the correct response 'B. False'.