This experiment was divided into two parts. For the first part of the experiment, the was intentionally manipulated. This was the independent variable. The dependent variable observed was the .:exposure to dryness
This experiment was divided into two parts. For the first part of the experiment, the was intentionally manipulated. This was the independent variable. The dependent variable observed was the .:earthworm behavior
For the second part of the experiment, the was intentionally manipulated. This was the independent variable. The dependent variable observed was the .:exposure to strong odor
For the second part of the experiment, the was intentionally manipulated. This was the independent variable. The dependent variable observed was the .:earthworm behavior