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 .
This is due to the amount of infrastructure in the city. All that metal holds heat making inside the city hotter than outside the city.
Answer:
B, because religion has nothing to do with it. iii could work because meat could be the only food source available, and i works because snow requires a special transportation.
Explanation:
Answer:
Hunter-gatherers were prehistoric nomadic groups that harnessed the use of fire, developed. Hunting and gathering remained a way of life for Homo heidelbergensis. It also spanned most of the existence of Homo sapiens, dating from the first anatomically.
Explanation:
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