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 .
Tectonic plates
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Answer:
A. Water
Explanation:
Seeds only germinate when rains occur, so death by dehydration less likely
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.
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The primary sector<span> of the economy extracts or harvests </span>products<span> from the </span>earth<span>, </span>such<span> as raw materials and basic foods.</span>