The correct answer will be- reproduction rate of salmons.
Explanation:
The experimental design contains three types of parameters or variables: dependent, independent and constant.
The dependent variable is the variable which has to be studied in the experiment and depends on the independent variable whereas the independent variable is the variable which can be changed or manipulated in the experiment.
In the given question, the dependent variable to be studied is the "reproduction rate" of the Salmon and thus is the correct answer.
Vascular tissue Of course plants don't have hearts, but they do have vessels which transport water, minerals, and nutrients through the plant. These vessels are the vascular tissue.
