Answer:
The safety rules and symbols have to be noticed when there is a biology investigation being carried on. Because by interpreting them risk can be minimized and unfortunate situations avoided.
Step-by-step explanation:
To understand this we need to analyze it from a Prevention perspective. First of all, prevention is the best effort to reduce risks associated with a certain situation. In the case of a biological investigation, people have to know all it's meanings because they can know the risks. As well as to be prepared to react in case something happens. Because even though we are carrying out the best to prevent a misfortunate situation they can still happen.