Enviroment science lab5 Essay Example | Topics and Well Written Essays - 250 words

Enviroment science lab5 - Essay Example Invasion of zebra and quagga mussels into fresh water is catastrophic impact to the ecosystem in which they are brought. This is so because they clog water intake structures which increase the cost of maintenance of water treatment and power plants. A zebra and quagga mussel also causes lakeshore problems to the recreationists and residents. They multiply at a faster rate and this leads to a decrease in phytoplankton. This is so because they filter phytoplankton from the surrounding water which increases the clarity of water. Lake trout will increase since they will have sufficient food that is zooplankton and zebra mussels. On the other hand, foraging fish will also increase since they have enough food to keep them alive. This explains why phytoplankton decreases tremendously and this will cause imbalance to the ecosystem. This filtration process may also contribute to the explosive growth of harmful blooms and ecosystem may lead to disappearance of some unique

BECOMING AN AUDIOLOGIST Essay Example | Topics and Well Written Essays - 500 words

BECOMING AN AUDIOLOGIST - Essay Example To work as an audiologist will require that the person be licensed. All states require a minimum of a masters degree to gain registration in that state. In Alabama, there have been some recent modifications to the requirements. Currently the state requires a doctoral degree and some form of supervised clinical experience. After attaining these credentials the person is allowed to take the state approval examination. Before 2007, the state required a masters degree, but the enhanced requirements only affect those just entering the field. This is typical of the other states where they have selectively raised the academic requirements. Currently there are 12,000 professionals that work nationally as audiologists. This number is expected to increase to 13,000 by the year 2016. This adds about 100 new professionals per year. This is about the average of all occupations, but the chances of working in the field are increased when the person has a doctoral degree. Many states require continuing education for re-licensing, and Alabama maintains that requirement for audiology assistants. The median income for an audiologist is about sixty thousand dollars per year. The income is tightly grouped with few audiologists making more than ninety thousand or less than forty thousand dollars per year. The field of audiology has ma