Which of these is true about adulthood?

A. The growth of the skeletal system stops; bones become weaker.

B. The lymphatic system matures.

C. Males usually start their growth spurts.

D. Females usually begin to have menstrual cycles.

The biggest life lesson for me is that karma is a real thing

What ar the options

Some of their responsibilities are to evaluate safety, efficiency, and effectiveness of the biomedical equipment. train people on how to properly operate biomedical equipment. lastly is to research the engineering aspects of the biological systems of humans and animals.