A ________ is a substance that reveals its presence in one way or another and thus can be localized or monitored during an experiment.
A)trancer
B)tracer
C)phosphor
D)fluor
E)trancept

Question

Quizplus · Accepted Answer

A tracer is a substance that is introduced into a system and can be detected and monitored, usually by its radioactivity or fluorescence. This allows researchers to track the movement or location of the substance within the system. The other options, trancer, phosphor, fluor, and trancept, are not commonly used terms in this context.

A ________ Is a Substance That Reveals Its Presence in One