In an experiment students put brine shrimp in water with dif

In an experiment, students put brine shrimp in water with different concentrations of salt and counted the number of living shrimp after 24 horus. Which of the following changes to the experiment will increase confidence in the validity of the result?

a. Repeat the experiment several times, and calculate the average number of brine shrimp

b. count the number of dead brine shrimp instead of living brine shrimp.

c. Add more brine shrimp to the water with the highest salt concentration

d. Reduce the length of the experiment from 24 hours to 8 hours/

Solution

Correct answer is option no. A

Repeat the experiment several times, and calculate the average number of brine shrimp.