Final answer:
B. are dangerous substances; poisonous substances .Hazardous substances are dangerous substances that can cause immediate or long-term damage, while toxins are poisonous substances produced by organisms that interfere with cellular functions. The correct answer to the student's question is B - hazardous substances are dangerous substances; toxins are poisonous substances.
Step-by-step explanation:
The distinction between hazardous substances and toxins is nuanced, and understanding the differences is important in both biology and environmental sciences. Hazardous substances and toxins can have varying effects on the body, which may be immediate or long-term, general or specific. Here is a fuller explanation to address the student's question:Hazardous substances are dangerous substances; they include a variety of materials that can cause damage either through immediate contact or over time. This damage can come from chemical reactions or from the physical properties of the substances.
Toxins are poisonous substances produced by organisms in nature and have the potential to cause harm or death by interfering with cellular functions. An example of a toxin is an A-B exotoxin where the A component disrupts cell function.Additionally, some substances are of concern at all concentrations, highlighting that the difference between a therapeutic and a toxic dose can be very small.Regarding the options provided by the student, the answer would be: B. are dangerous substances; poisonous substances.