Which of the following will stay constant no matter if the substance is in the solid, liquid, or gas state? A.)mass
B.)tempature
C.) volume
D.) shape

A

Explanation: ive done this before

i believe the answer is:   psychological  experiment

in this experiment, wilhelm wundt became the first person that implement scientific method in analyzing the pyschological phenomenon.

due to this result, wilhelm wundt also able to make psychology to be acknowledged as a separate scientific field from biology.

answer; biological;