The earliest introduction of zebra mussels in united states probably occurs in 1986.
At that time, commercial vessels from Europe went to north America as a place for freshwater ballast stowaway. They merchants then introduced zebra mussels to the market and it gained popularity ever since. They also introduced zebra mussels population in local lakes and let them reproduce there.
GDP mean gross domestic products so in simpler terms it means what you sell as a product, so if your GDP is high and you are economically stable your most likely a developed country that has a good economy ( so answer A )
Answer:
Special committee
Explanation:
In the United States Congress, a special committee is a congressional committee that:
- is appointed to perform a special function that a standing committee can't perform (Standing committees have responsibility to monitor agencies, programs, and activities within their jurisdictions) and
- it usually expires on completion of its designated duties.
The Committee on the Events Surrounding the 2012 Terrorist Attack was created in 2014 to <u>conduct an investigation about these attacks, therefore it was appointed for a special function</u> (a standing committee couldn't have done this since terrorist attacks have not specific jurisdictions), once it <u>completes its work it will no longer exist.</u> Thus, it is clearly an example of Special Committee.
Rods are responsible for vision at low light levels. They do not mediate color. Cones are active at higher light levels, are capable of color vision and are responsible for high spatial acuity.
