Some costs have components that are fixed and some that are variable. One example is wages for your sales force. A portion of the wage for a salesperson may be a fixed salary and the rest may be sales commission.
Hornets are the largest eusocial wasps, reaching up to 45 millimetres (1.8 inches) in length. Yellowjackets are black-and-yellow wasps of the genus Vespula or Dolichovespula (some can be black-and-white, the most notable of these being the bald-faced hornet, Dolichovespula maculata).
Like all flies, they only have one pair of translucent wings for flying and the second pair are only used for balance. Houseflies are 4 to 8 mm long, and are 6.35 mm long on average. Larvae are 12 to 13 mm long, yellowish white, and have smooth and shiny bodies.