HUMAN NUTRITION

Detailed explanation-1: -Any long hair should be tied back or confined when in the undergraduate laboratories to avoid it catching fire, being dragged through chemicals, or becoming entangled in laboratory apparatus.

Detailed explanation-2: -Hair can impede vision. Long hair can fall onto the lab bench/come in contact with chemicals or biologicals. Long hair is also a hazard around rotating equipment and open flames such as Bunsen burners or alcohol. Dangling neckwear may come in contact with chemicals, biologicals, or open flames.

Detailed explanation-3: -Before conducting any experiment, you should access the hazards related to the work, including; what are the worst possible things that could go wrong, how to deal with them, and what are the prudent practices, protective facilities and equipment necessary to minimize the risk of exposure to the hazards.

Detailed explanation-4: -Hands must be washed with soap and running water after handling chemicals, biohazardous materials or animals, before leaving the laboratory; and before eating.