The region between two neighboring, parallel I-bands is known as the A-band and contains the entire length of single myosin myofilaments. Within the A-band is a region known as the H-band, which is the region not superimposed by actin myofilaments.
To become an exterminator, or licensed structural pest control applicator in the state of Texas, you must meet minimum requirements and have a license, which requires classroom hours. Steps. Meet the minimum requirements. In Texas, you must be at least 18 years of age and have a high school diploma or GED.
Before you conduct any work, you must register the pest control business license with the county agricultural commissioner's office in each county in which your business intends to perform pest control. Most counties require a fee for registration. Registration is required annually and covers one calendar year.