Salary. The BLS puts the national estimate for billing clerks at a mean hourly wage of $16.31, or $33,920 annually, as of May 2011. The amount billing clerks earn also varies by industry, state and metropolitan area.nvoicing is done through the company's accounts receivables system. Until the bill is paid, it remains as a debit on the customerâs account. Once paid, the customerâs account is credited. If customers fail to pay their invoice, the billing clerk sends them reminders, and, in some cases, attempts to collect the debts.
There are thousands of different types of flatworms, most are not dangerous to humans. Flatworms belong to one of four subsidiary groups. Those found in streams, ponds, moist soils, and the sea are the turbellarians.They are free-living, that is they move about looking for food. The other three groups â the Tremotada (flukes), Cestoda (tapeworms), and Monogenea â are all parasitic.here are thousands of different types of flatworms, most are not dangerous to humans. Flatworms belong to one of four subsidiary groups. Those found in streams, ponds, moist soils, and the sea are the turbellarians.
Roundworms are very commonly found in pets and animals such as dogs and cats and can be easily passed on to humans. Roundworms live in salt water, fresh water and the soil. Eating contaminated foods or getting worms from contaminated pets is the most usual way to get roundworms (a category of worms).Hookworms and pinworms are often the most common types of roundworms found in humans.t is estimated that there are over 100 different types of parasitic worms that can be found living in humans. The word Parasite itself comes from the old Greek word Parastos meaning a person or thing, which eats at someone else's table.