1. •Biological hazards include illness-causing microorganisms. A microorganism is a tiny,
   

usually single-celled organism that can be seen only with a microscope. A microorganism

that can cause disease is called a pathogen. There are four kinds of microorganisms that can

contaminate food and cause illness:

1.Bacteria

2.Viruses

3.Fungi

4.Parasites

Other examples of Biological hazards are certain plant, mushroom, and seafood toxins.

1. •Chemical hazards include cleaners, sanitizers, polishes, machine lubricants, and toxic
   

    metals.

1. •Physical hazards are foreign objects that accidentally get into food. Examples include
   

hair, dirt, bandages, metal staples, and broken glass. Naturally occurring objects, such as

bones in fillets, are also physical hazards.