Question

checkpoint 03 listen what defines a scientific theory? an explanation that is testable through an experiment a conclusion based on combining multiple ideas an explanation of observable phenomena that is supported by evidence a conclusion based on repeated experiments

Explanation:

A scientific theory explains observable phenomena with evidence - based support. It's not just testable (a hypothesis is testable), not a simple combination - of - ideas conclusion, and not just from repeated experiments (which may lead to a law or result, not always a theory).

Answer:

an explanation of observable phenomena that is supported by evidence