<span>A network of small vessels and organs known as the LYMPH system carries chemicals throughout the body.</span>
The most important reason for food handlers to understand and apply food safety knowledge is to prevent the spread of illnesses through food.
Food workers play a critical role in ensuring food safety, those who do not practice proper personal hygiene, including hand washing at appropriate times and using appropriate methods can contaminate food. It is therefore; very important for food workers to understand and apply food safety measures so as to prevent spread of diseases through food.
Exchange of gases in fish is very efficient because of: the large surface area of the gills. the large surface area of the blood capillaries in each gill filament. the short distance required for diffusion – the outer layer of the gill filaments and the capillary walls are just one cell thick.
