Question

question # 2
multiple choice
early toxicologists were at a disadvantage when trying to identify and quantify poisons because they lacked _.
o a legal system to back them
o ethics and professionalism
o organization
o sensitive chemical tests and analytical instruments

Explanation:

Early toxicologists faced difficulties in identifying and quantifying poisons. A legal system (not relevant to scientific identification/quantification), ethics/professionalism (not the main technical barrier), and organization (not the key issue for scientific analysis) are not the main reasons. Sensitive chemical tests and analytical instruments are crucial for accurately identifying and measuring poisons. Without them, toxicologists couldn't perform precise scientific work.

Answer:

sensitive chemical tests and analytical instruments