Answer:
an experiment that reveals a new step in a metabolic pathwa
Explanation:
The development of cellular technologies brought newness in the ability to communicate between people, that is, there was a change in communication patterns through new technology, through applications, video conferencing and other forms of communication that did not previously exist.
Among the options of this question, the only one that demonstrates a new process, a novelty would be the discovery of a new way on the metabolic process. The other alternatives represent the confirmation of pre existing experience, that is, although through other processes, the final object was the same, it was not something disruptive.
