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 .
The answer is when the sun and the moon are at the right angles to the earth
Which make the sun, the earth and the moon formed a 90 degree angle.
during neap tides, the gravitational forces between the 3 counteract one another, creating a weaker tidal forces
Answer:
PLEASE MARK ME BRAINLIEST!
Explanation:
People tend to stay in/out in different types of weather.
The style of clothing changes because of weather.
The sports you play because of weather.
And sometimes your mood can change because of weather.
i think the answer would be "in both eastern and western hemispheres"
