Question

Alex is a research assistant for his favorite biology professor, Dr. Diaz. Dr. Diaz is interested in studying the effects of aquarium temperature on the number of offspring produced by a certain species of fish.

Alex knows from his economics class that to isolate the effects of a particular phenomenon, all other things must remain the same. In Latin, this is referred to as   .

In order to keep all other things the same and isolate the effects of one particular variable in the biology experiment, Alex will want to do which of the following? Check all that apply.

Take meticulous notes about the color of the fish.

Make sure all aquariums used are the same size.

Give the fish in each aquarium the same amount of food.

Answer 1

Ceterus Paribus is the phenomenon to isolate the effects of particular variable and keep all the others constant. This is ceterus Paribus(keeping all others constant)

For studying the effect of aquarium temperature on number of offspring produced , it is necessary to isolate all over factors like the food provided to fishes, the size of the aquarium, the gap between feeding them etc. Given these variables constant, the study isolates the variable of aquarium temperature because these variables may be responsible for the change in offspring and give bias results.

Taking notes on the color of the fishes won't be necessary.

So answer is option B and C ie making sure all aquariums are of same size and each fish gets same food .

(You can comment for doubts)