Answer:
observation or experience
Explanation:
Empirical method is a study that uses indirect or direct observations in order to gain some knowledge. It uses empirical evidences-information that are collected through observation or experience.
Theory that is tested by empirical method involves the use of objective, that is observed, highly controlled and replicable.
Answer:
It could be separated into a group of full black plumage on the bakc, and mixed color on the back.
Metaphase, prophase, anaphase,and telophase.
