Employers must guard employees from three types of hazards. these include a floor that is large enough for a person to fall into, a floor hole that is large enough and for small items to fall into, and a wall opening that is large enough for a person to fall through and is at least 4 feet above the ground.

Insulin is a peptide therapeutic used to manage type 1 diabetes, which affects more than 20 million people worldwide according to the international diabetes federation. a significant limitation to the broad distribution and use of insulin to treat type 1 diabetes is the fact that it must be administered by injection rather than orally. why is insulin administered by injection and not orally?