Answer:
D) is the answer because it only allows particular molecules to get in and out
I think it is because of a varicose ulcer, might not be right though
Answer:
Here are five important tips for preventing cross-contamination in your operation.
Implement a personal hygiene program. ...
Remind employees to wash their hands. ...
Use separate equipment. ...
Clean and sanitize all work surfaces. ...
Purchase prepared food.
Explanation:
(copied from Google)
This is very good information thanks
