Answer:
a) calculating the concentration at which 50% of the test organisms of a particular species die
Explanation:
Bioassays -
<u>Bioassays is an analytical method to assess the effect of marine pollutant on the organism by estimating the concentration at which 50% of the test organisms die after exposing the test organisms for a specified time.</u>
It can be done by quantitative or by qualitative experiment , or direct or indirect .
It is used to detect the biological hazards or give the quality assessment of the mixture .
It is also used for the monitoring the quality of water .
Acid rain corrodes both stone and buildings. It can cause thousands of dollars of damage.
In terms of individual states, the answer would be New Jersey. Otherwise, the REGION that is most densely populated is the east coast, specifically the Northeastern part of the U.S.
Hope this helps!
Involvement - France is one of the six founding member of theEU.
It is one of the 6 core founding countries of the EU, so France technically founded & joined the EU in 1958.
Euro was introduced in 1999, and since 2012 France uses the Euro exclusively.
Because France used to be a powerful colonialist, they have overseas regions, territories which are not located in Europe, but their citizens are european citizens. For example, French Guiana people can live & work in Europe based on their French citizenship.
Because of its resemblance to a hexagon, france is sometimes called l’Hexagone
France abolished the guillotine as the capital method of punishment only in 1981 - 23 years after they founded the EU. The last person to be punished in France by guillotine was executed on 10 September 1977.
