After scientists use a careful process to gather evidence and establish scientific facts, which step most likely occurs next in
the scientific process?
conducting experiments
testing new conditions
studying new topics
determining explanations

testing new conditions

Explanation:

In a scientific process the facts and evidences related to cause of natural process is derived. This involves the process of making observation, formation of question, framing hypothesis, conducting experiment, analyzing data, formulation of new scenarios and testing in different conditions using different variable and finally deriving the conclusion.

On the basis of the above description, testing new conditions is the correct option.

a- all cells come from pre-existing cells