Food-service equipment should be carefully cleaned and sanitized, in order to prevent foodborne illnesses. Cleaning is the process of removing traces of food from surfaces while sanitizing is the process of removing microorganisms from surfaces. In general, food-contact equipment should be cleaned and sanitized after each use of the equipment. However, when the food-contact equipment is in constant use, it should be cleaned and sanitized every four hours.
For number one the answer is Punnet square. For number two the answer is first generation and for number three the answer is TT so letter D! I hope this helps you!
They're all common in the fact that they have to eat others that have energy, because they in themselves cannot produce their own energy. All animals are multicellular.