Respuesta :
Answer:
The active ingredients in many pesticides are chemical compounds that kill organisms such as insects, molds, and weeds. Proponents claim that the use of pesticides improves crop yields and thus protects land and soil by reducing the conversion of forests and wetlands to cropland.
Explanation:
The experiment design would be based on the hypothesis - that higher concentration of the new pesticide product X will result in more mortalities of minnows in the population.
Experiment:
- In such type of experiment we required four different tanks with fresh water in each of them and 20 minnows in each as well.
- Tank 1 with no pesticide would be control in this experiment.
- concentration of the pesticide in tank 2: 0.05 %, tank 3: 0.1% and tank 4: 0.2%.
- number of death of minnows in each tank would be count after exposure every day.
- Experiment should be continue for 30 days
- independent variable: concentration of pesticide
- dependent variable: number of deaths of minnows each day of exposure.
On the given design of the test we can determine whether or not a new pesticide (product X) is toxic to minnows, a type of small fish.
Learn more about experiment design:
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