I think the independent variable is the temperature, while the dependent variable is the size of the balloon. The factor that is held constant is the amount of air in the balloon. An identical balloon kept at the original temperature. Independent variable in an experiment is the variable that the experiment plans to change while the dependent variable is the variable whose value depends on the independent variable.
Top right one, metaphase is where the chromosomes are lined up in the middle (metaphase=middle)
"Volume and page numbers" is the one among the following choices given in the question that is the <span>least important information in finding it. The correct option among all the options that are given in the question is the fourth option or option "D". I hope that this is the answer that has actually come to your help.</span>