When should the HPO be use?

Answer 1

its use to developed baby

Answer 2

nd q nga alam eh

Answer 3

If you are talking about the HPO in a microscope, the answer may be this.

High Power Objective or simply HPO can be used to observe the fine detailed part of what your using specimen. This type of Power Objective is ideal if you want to see the nerve cells in a retina.

I know that this answer is very much too late, but I hope that this can help you and the others who also questioning themselves about this.

Thank You =)