How can a person guard against arthritis?

stop moving
lose muscle mass
build muscle strength
eat protein

What is the name of the tool scientists use to identify a species? species key dichotomous key species marker dichotomous marker

If hot water is not available in the ware washing sink, food establishments can still serve food using

Which of the following is a health risk associated with ground-level ozone? a.cataractsb.skin cancerc.respiratory illnessd.all of the above